But who was this grizzled elder monarch?

What did he accomplish?

And what is his legacy inHouse of the Dragon’s events where it concerns his descendants?

Jaehaerys sits with his descendants posed around him in House of the Dragon

Image via HBO

When Aegon the Conqueror died, Jaehaerys' father Aenys Targaryen ascended the Iron Throne as its second king.

Sadly, King Aenys' reign was short-lived.

The cruel king continued killing off members of his own family to cement his status.

A dragon flying towards King’s Landing in House of the Dragon

Image via HBO

The young king’s realm was slowly but surely mending based on his early decisions.

As a result, it was decided to marry Jaehaerys' sister to Ser Orryn Baratheon.

Despite this, the marriage is not consummated, as Jaehaerys decides that his sister is still too young.

Milly Alcock and Paddy Considine in House of the Dragon Season 1 standing in front of a giant skull of Balerion the Black Dread

Image via HBO

Due to this, a standoff ensues between Lord Rogar Baratheon and the Kingsguard.

A few months later, Jaehaerys and Alysanne discover that they had a child on the way.

This child, Aegon, unfortunately died three days after his birth.

House of the Dragon

The Westerosi sing praises of the king from Winterfell to Storm’s End.

Jaehaerys and Alysanne usher in several more Targaryen heirs, and king and country prosper together.

By 101 AC, Jaehaerys has outlived his own wife and seven of his nine children.

Jaehaerys' crown was bestowed to Viserys I Targaryen, who became King of the Seven Kingdoms.

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