House Rykker

House Rykker is a vassal house sworn to House Baratheon of King's Landing. Their seat is the town of Duskendale, located in the Crownlands. It holds fealty directly to the Iron Throne.

The only known member of the house is Ser Jaremy Rykker, acting First Ranger of the Night's Watch.

In the books
In the books, House Rykker was raised to lordship over Duskendale after the purge of House Darklyn, following the Defiance of Duskendale. Renfred Rykker, Lord of Duskendale, rules over Duskendale from the Dun Fort, a castle overlooking Duskendale. Their sigil is two black warhammers crossed on a white saltire on blue.