House Clegane is a house of landed knights in the westerlands. They hold fealty to House Lannister of Casterly Rock, and are among their primary bannermen. Their lands are southeast of the Rock and include a towerhouse, which, according to a semi-canon source, is named Clegane's Keep. Their sigil depicts three dogs on a yellow field.
The first knight of House Clegane was kennelmaster at Casterly Rock. During one autumn year he saved Lord Tytos Lannister from a lioness, although he lost a leg and three dogs while doing so. Lord Tytos rewarded him with lands and a towerhouse. Ser Clegane's son was placed in Tytos's service as his squire. For his sigil Ser Clegane used the three dogs he lost saving Tytos, on the yellow of autumn grass.
The kennelmaster's son, the father of Gregor and Sandor, died in a hunting accident. Their sister died young under queer circumstances. Gregor is known for his unspeakable cruelty; this is mirrored in the Mountain's men, who casually commit atrocities during their campaigns. Sandor was driven away by this behavior, taking service with House Lannister and refusing to take a knight's vows to avoid association with his elder.
Gregor was knighted by Prince Rhaegar Targaryen, the heir of King Aerys II Targaryen. During the Sack of King's Landing, Gregor murdered Rhaegar's son, the infant Prince Aegon Targaryen, before raping and murdering his mother and Rhaegar's bride, Princess Elia Martell.
Game of Thrones is roughly based on the storylines of A Song of Ice and Fire, set in the fictional Seven Kingdoms of Westeros and the continent of Essos. The series chronicles the violent dynastic struggles among the realm's noble families for the Iron Throne, while other families fight for independence from it. It opens with additional threats in the icy North and Essos in the east. Dive deep in the big world of Westeros or Essos.With us, you will learn all the history and geography about all houses castles and much more.