House Durrandon

House Durrandon is a former Great House of Westeros. It ruled over the Stormlands until the War of Conquest. It also held much of the Riverlands until they lost them to House Hoare. The head of House Durrandon held the title of Storm King.

The House was founded by Durran a legendary figure from the Age of Heores. The last King of the Durrandon dynasty, Argilac the Arrogant was killed by Orys Baratheon during the Last Storm. Baratheon took Argilac's daughter as his wife, as well as his sigil and words, taking over the Stormlands as vassal of his half-brother Aegon the Conqueror.

Members

 * Durran, founder of House Durrandon, a Legendary Figure of The Age of Heroes
 * {Argilac Durrandon}, called "Argilac the Arrogant", last of the Storm Kings. Killed by Orys Baratheon in single combat on the battlefield.
 * {Argalia Durrandon}, his daughter. Married by Orys Baratheon after he killed her father, and mother of Orys's children.

In the books
In the A Song of Ice and Fire novels, House Durrandon was the dynasty that claimed descent from Durran Godsgrief, the first Storm King and founder of Storm's End. King Arrec of House Durrandon was the last Storm King who ruled the Riverlands, conquered by his ancestors three hundred years before, losing it to the ironborn led by King Harwyn Hardhand of House Hoare.

House Durrandon seemingly left no other known surviving branches, and is officially extinct, but its female bloodline lived on in the Baratheon dynasty.

Eventually, the bloodline of House Baratheon perished with the deaths of Shireen and Stannis in the TV series, thus, ending the legitimate Durrandon bloodline as well. The only known living descendant of the Baratheons and Durrandons is Gendry, the unacknowledged bastard of Robert Baratheon.