Lord of Wyndhall is a title held by the head of House Estren, the rulers of Wyndhall in the westerlands.
When war breaks out, Lord Regenard Estren supports King Joffrey I Baratheon. He is a part of Ser Jaime Lannister's force besieging Riverrun, but is captured at the battle in the Whispering Wood.
Lord Estren is held captive at the Twins.
Regenard is released following the Red Wedding.