Seven Kingdoms: Seowyn's Crossing
Aldwyn Tarmoore was ruler of the Kingdom of Summerlund born in 312 SKR and ruler from 337 to 401 SKR. When his sister, Adala Tarmoore, revealed herself to be the self-styled Witch Queen who had been plaguing the Kingdom for several years, he tried to reason with her, even to the point of offering to make her joint ruler of Summerlund. When this failed, he called the Conclave of the Seven Kingdoms together to meet the threat of her undead armies.
After the Seven Kingdoms’ victory in the First Witching War, Aldwyn’s descendants ruled Summerlund for over 300 years, until the Second Witching War when Adala Tarmoore slew Varwyn Tarmoore, her own kinsman, and Varwyn’s son, Caudus Tarmoore, died in battle, leaving no heir.