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Ep. 19The Eighteen-Year-Old King
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Episode 19

The Eighteen-Year-Old King

King Gwanggaeto the Great ① · 391
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Previously

Baekje’s King Geunchogo drove back the Goguryeo army at Chiyang in 369 and in 371 attacked Pyongyang Fortress, striking down Goguryeo’s King Gogugwon, and the Seven-Branched Sword, a sword with seven branches, crossed the sea to Wa. Meanwhile in Goguryeo, King Gogugwon’s son King Sosurim set the kingdom back on its feet, and his younger brother and successor, King Gogugyang, made his son Damdeok crown prince in 386.

Characters

DamdeokKing of Goguryeo.
Takes the throne at eighteen
King AsinNew king of Baekje.
Seeks to retake Gwanmi Fortress
King JinsaKing of Baekje.
Asin’s paternal uncle
JinmuA Baekje general.
King Asin’s maternal uncle

In 414, a stone stele more than three times the height of a man was raised near Gungnae Fortress, the capital of Goguryeo.

二九登祚
King JangsuSon of King Gwanggaeto the Great

It was the Gwanggaeto Stele, which King Jangsu raised to carve in stone the achievements of his late father.

The stele begins with the story of the founder, King Chumo (Jumong), and goes on like this.

Ascending the throne at eighteen,
he took the title Great King Yeongnak.

二九登祚 號為永樂太王 — Gwanggaeto Stele

In 391, King Gogugyang died, and Crown Prince Damdeok took the throne.

DamdeokSon of King Gogugyang · Eighteen years old

The king gave his reign the era name “Yeongnak,” the name by which the years were counted. People called him “Great King Yeongnak.”

The Samguk Sagi recorded that he was of large build from birth, with great ambitions and a bold, open-hearted spirit.

DamdeokTwenty years since my grandfather fell at Pyongyang Fortress.
Now Goguryeo heads south.

His grandfather, King Gogugwon, had died in 371 at Pyongyang Fortress, struck by a flying arrow while fighting the Baekje army.

In the seventh month of 392, Damdeok led 40,000 troops south into Baekje’s northern lands.

DamdeokSouth! On to Baekje!

News that Damdeok, king of Goguryeo, had invaded with 40,000 troops reached Hanseong, the Baekje capital.

King JinsaKing of Baekje · Asin’s paternal uncle
CourtierQuickly, send out troops to stop them!
King Jinsa…The young king they say commands troops like a demon?

Hearing that Damdeok was a skilled commander, King Jinsa could not bring himself to go out and stop him.

Some ten fortresses, including Seokhyeon Fortress, and many villages north of the Han River fell into Goguryeo’s hands.

GoguryeoBaekjeYellow SeaEast SeaYalu RiverTaedong RiverHan River (Hansu)Yeseong RiverImjin RiverGungnae FortressThe Goguryeo capitalPyongyang FortressA great Goguryeo fortressHanseongThe Baekje capital7th month, 392 · 40,000 troopsSeokhyeon Fortress (presumed)Seokhyeon and 10-odd fortsGwanmi Fort ?e.g. Gyodong IslandMost fort sites are unknown,and Gwanmi’s site is debated

In the ninth month, Damdeok turned his horses around and attacked the Khitan in the north.

He captured 500 Khitan men and women.

Goguryeo people who had been carried off as captives were living in the Khitan lands.

DamdeokPeople of Goguryeo, let’s go home!
Old commonerThat’s Goguryeo speech…! Our king has come!

Damdeok called out to them and reassured them, and brought 10,000 people home.

GrandmaNow we’re going home.
GrandsonGrandma, what’s home?

In the tenth month, the Goguryeo army reached Gwanmi Fortress on the coast.

Goguryeo generalNo one but a bird could climb that fortress.
DamdeokIf there were only one way up, yes.

It was a fortress with sheer cliffs on all four sides, ringed all around by the sea.

DamdeokSplit into seven columns! Attack all at once!

The king split his army into seven columns and pounded the fortress.

The assault went on for twenty days.

Goguryeo soldierThe wall’s coming down!

After twenty days, Gwanmi Fortress fell.

DamdeokNow Baekje’s northern gate is open!

Around that time, King Jinsa had left the capital and was out hunting at Guwon.

MessengerYour Majesty! Gwanmi Fortress has… fallen!
King Jinsa……

The king did not return for more than ten days.

In the eleventh month, King Jinsa died at the temporary palace at Guwon.

Asin, the eldest son of King Chimnyu, succeeded King Jinsa on the throne.

King AsinNew king of Baekje · Loved hawks and horses

It is said that Asin was still young when his father, King Chimnyu, died, so his uncle Jinsa became king first.

In the first month of 393, King Asin made his maternal uncle Jinmu Jwajang and entrusted him with military affairs.

JinmuKing Asin’s maternal uncle · Jwajang (commander)
King AsinUncle, I entrust the kingdom’s army to you.

Jinmu was calm, resolute and a great strategist, and people readily followed him.

King AsinGwanmi Fortress is the key stronghold of our northern frontier.
Losing it to Goguryeo grieves me beyond words.

In the eighth month of 393, King Asin summoned Jinmu.

King AsinGive it your whole heart, and wipe away this shame!

Jinmu marched north at the head of 10,000 troops.

To win back five fortresses, Seokhyeon among them,
he first laid siege to Gwanmi Fortress.

Jinmu himself led from the front, braving arrows and stones.

JinmuDon’t fall back! We take back Gwanmi Fortress!

The Goguryeo troops inside held the fortress stubbornly.

But the supply lines could not be kept open.

Baekje soldierThe rice… it’s all gone.
Jinmu…We turn back.

In the end, Jinmu withdrew his army. Goguryeo’s banners still flew over Gwanmi Fortress.

In the seventh month of 394, the Baekje army marched north again.

Damdeok himself led 5,000 swift cavalry to meet them head-on.

Beaten below Sugok Fortress,
the Baekje army fled under cover of night.

In the eighth month, Goguryeo built seven fortresses in the south of the kingdom to guard against Baekje.

DamdeokThe king of Baekje will come again.

In the second month of 395, a comet appeared in the northwestern sky and vanished after twenty days.

King AsinWhat is Heaven trying to tell us…
…Even so, we must take back Gwanmi Fortress.

In the eighth month, King Asin sent Jinmu and others to attack Goguryeo once more.

By the Paesu River, Damdeok, the Goguryeo king, had pitched camp with 7,000 troops he led himself.

DamdeokKing of Goguryeo
JinmuThe Goguryeo king… has come out himself.
DamdeokDon’t let the Baekje army cross the river!

The Baekje army was badly defeated.

The dead numbered 8,000.

In the eleventh month, to avenge the battle of the Paesu River, King Asin himself led 7,000 troops across the Hansu.

King AsinThis time, I go myself.

When they reached the foot of Cheongmongnyeong Pass, heavy snow came pouring down.

King AsinGive it your whole heart, and wipe away this shame!

Many soldiers froze to death.

The king led his army back to Hansan Fortress and comforted his exhausted soldiers.

King AsinNone of this is your fault.
Your Majesty…

Winter, 395. The king of the north and the king of the south were standing in the same falling snow.

DamdeokNow Goguryeo heads south.
King AsinWe must take back Gwanmi Fortress.

King Asin’s resolve to retake Gwanmi Fortress had not yet been fulfilled.

The next year, 396, King Gwanggaeto the Great
takes to the sea at the head of his navy.

End of Episode 19

History Notes

The scenes in this story are based on these records and sites.

  1. Gwanggaeto SteleGwanggaeto Stele · Ji’an, Jilin Province, China

    391 or 392?

    The Gwanggaeto Stele records that the king “ascended the throne at eighteen” (二九登祚) and was called “Great King Yeongnak.” Since the 5th year of Yeongnak on the stele is the eulmi year (395), he became king in 391. The Samguk Sagi, however, counts 392 as the king’s first year, running one year behind the stele, so many scholars place in 391 the campaigns that the Samguk Sagi records for the year he became king: against the ten Baekje fortresses, the Khitan and Gwanmi Fortress. This episode follows the stele for the year he became king, and the Samguk Sagi for the years of the battles.

    Gwanggaeto Stele · Samguk Sagi, Goguryeo Annals, King Gwanggaeto
  2. Odusan Fortress, PajuOdusan Fortress, Paju · One of the proposed sites of Gwanmi Fortress

    Where Was Gwanmi Fortress?

    The Samguk Sagi describes Gwanmi Fortress as “cut off by sheer cliffs on all four sides and surrounded by the sea.” So there are several theories: that it was Gyodong Island in Ganghwa, an island at the mouth where the Han and Imjin Rivers flow out to sea; that it was Odusan Fortress in Paju, where the two rivers meet; and that it stood at the mouth of the Yeseong River, among others. Whichever it was, it was a key stronghold guarding the waterway in and out of Hanseong, the Baekje capital. Some also identify “Gangmi Fortress,” one of the 58 fortresses the stele says were taken in 396, with Gwanmi Fortress.

    Samguk Sagi, Goguryeo Annals, King Gwanggaeto · Samguk Sagi, Baekje Annals, King Jinsa and King Asin
  3. The King Who Died at the Hunting Grounds

    The Samguk Sagi describes King Jinsa as “strong and brave, intelligent and full of strategy,” yet it records only that he failed to go out against Damdeok when he invaded, and that in the month Gwanmi Fortress fell he went hunting at Guwon and did not return for more than ten days, dying the following month at the temporary palace there. The Nihon Shoki tells an entirely different story: that King Jinsa was killed for behaving rudely toward Wa, and that Asin (Ahwa) was set up as king. This story, written from Wa’s point of view, is hard to take at face value, but some scholars see the sudden death at the hunting grounds as a coup over the throne.

    Samguk Sagi, Baekje Annals, King Jinsa and King Asin · Nihon Shoki
  4. Pungnap-dong Earthen Fortress, Seoul — Baekje’s walls, still standing among apartment blocksPungnap Earthen Fortress · Songpa-gu, Seoul

    King Asin and His Maternal Uncle Jinmu

    King Asin was the eldest son of King Chimnyu. It is said that when he was born at a detached palace in Hanseong, a mysterious light lit up the night, and that as he grew up he loved hawks and horses. He was supposedly too young to rule when his father died (385), so his uncle became king; but since he named his eldest son Jeonji crown prince in 394, some doubt that he was really so young. His maternal uncle Jinmu became Jwajang in 393 and took charge of the army, and in 398 he became Byeonggwan Jwapyeong. Hanseong, the capital from which King Asin ruled, is thought to have been in the area of today’s Pungnap Earthen Fortress and Mongchon Earthen Fortress in Songpa-gu, Seoul.

    Samguk Sagi, Baekje Annals, King Jinsa and King Asin
  5. The Paesu River, Cheongmongnyeong Pass and Seokhyeon Fortress

    Many scholars identify the Paesu River, where the two kingdoms faced each other at this time, with the Yeseong River in Hwanghae Province. Cheongmongnyeong Pass, where King Asin’s army ran into the snow, is thought to be a pass northwest of Kaesong. Baekje built a fortress at Cheongmongnyeong in 373, and in 386 it built a line of defenses running from Cheongmongnyeong north to Palgon Fortress and west to the sea. Some also place Seokhyeon Fortress, the first that Damdeok took, in the Kaepung area near Kaesong, so this region was a battlefield where the two kingdoms clashed again and again.

    Samguk Sagi, Baekje Annals, King Jinsa and King Asin
  6. The Year 395 on the Stele

    The Gwanggaeto Stele does not mention the fighting with Baekje in 392–395 separately. Many scholars think the 58 fortresses listed under 396 also include those taken from 392 on. For 395 (the 5th year of Yeongnak), the stele records that the king personally attacked the Biryeo (also read Paeryeo), destroyed 600 to 700 encampments (營) of three tribes by the Yeomsu River and seized countless cattle, horses and sheep, and then toured his lands and hunted on his way home. Many scholars see the Biryeo as a branch of the Khitan. The Samguk Sagi’s account of the 392 campaign against the Khitan (capturing 500 men and women and bringing back 10,000 Goguryeo people) does not appear in the inscription.

    Gwanggaeto Stele · Samguk Sagi, Goguryeo Annals, King Gwanggaeto
  7. Taewangneung Tomb (Ji’an, China)Taewangneung Tomb · Ji’an, Jilin Province, China

    The Name “Gwanggaeto”

    The inscription calls the king “Gukgangsang Gwanggaetogyeong Pyeongan Hotaewang.” Many scholars think “Gukgangsang” refers to the place where he was buried; his grandfather King Gogugwon also has another name in the Samguk Sagi, “King Gukgangsang.” The rest is usually interpreted as “the good Great King (hotaewang) who broadly opened up the borders of the land (gwanggaetogyeong) and brought peace to the realm (pyeongan).” In his lifetime he was called “Great King Yeongnak,” after his era name. The great stone-mound tomb near the stele, Taewangneung Tomb, takes its name from bricks found there inscribed with a wish that “the tomb of the Great King be as secure as a mountain,” and many scholars think it is King Gwanggaeto the Great’s tomb (others identify his tomb as Janggunchong).

    Gwanggaeto Stele · Samguk Sagi, Goguryeo Annals

Key Words of This Episode

Next episode

Episode 20 · King Asin’s Vow

In 396, King Gwanggaeto the Great personally leads his navy by sea against Baekje. Fifty-eight fortresses fall, and the Baekje capital is besieged across the Arisu—cornered, what vow will King Asin make?

Photo credits

All illustrations in this webtoon are original. Character names and dialogue are imaginative reconstructions based on historical facts and research. Dates and interpretations follow mainstream scholarship; where scholars disagree, the History Notes say so.