House Clegane
A small westerlands house of sworn swords to the Lannisters, risen in three generations from a kennelmaster's courage ÔÇö and known now for two monstrous brothers.
The fuller tale
House Clegane's entire nobility is three generations old, built on a single act: a kennelmaster's son who saved Lord Tytos Lannister from a lion with his bare hands and a knife, and was knighted and landed for it. It made the Cleganes minor lords rather than mere servants, sworn swords of the westerlands answering directly to Casterly Rock ÔÇö and it produced, within two generations, two brothers whose reputations could not have less resemble the loyal courage the house was founded on.
Gregor Clegane is less a character than a force of nature the story keeps pointed at other people ÔÇö enormous, nearly wordless, employed by Tywin Lannister precisely because he asks no questions about what he is ordered to do, up to and including the murder of a prince's wife and children during the Sack of King's Landing, an act the realm spent the rest of the story trying and failing to hold anyone accountable for. His brother Sandor grew up in his shadow and under his hand, literally ÔÇö his own face burned by Gregor as a boy for touching a toy that wasn't his, a mutilation that shapes every scar-conscious, fire-fearing thing about the man he becomes.
Sandor's arc runs in the opposite direction from his brother's entirely: hired muscle for the crown who gradually discovers, mostly through an unlikely partnership guarding Arya Stark across a burning countryside, that his contempt for chivalry's empty rituals was never quite the same thing as contempt for people. He ends the story fighting not for a lord or a coin but against the one person on earth he has the least complicated feelings about ÔÇö his own brother, in a duel neither of them was ever going to walk away from unchanged.
The page and the screen
The show resolves the Clegane brothers' rivalry with total finality ÔÇö the two of them destroying each other in single combat, Sandor dragging Gregor's reanimated corpse into a burning castle rather than let it stand. The books have left Sandor Clegane's own fate deliberately ambiguous: last seen gravely wounded and presumed dead by other characters, with strong textual hints ÔÇö never confirmed ÔÇö that he may have survived as a silent, penitent gravedigger on the Quiet Isle, a fan theory the books have pointedly declined to either confirm or deny, unlike the show's unambiguous ending for both brothers.

