From A Wiki of Ice and Fire
|Spouse||Lady Prunella Celtigar|
|Book||Fire & Blood (mentioned)|
Uther Peake was the Lord of Starpike, Dunstonbury, and Whitegrove, and the head of House Peake during the early reign of King Jaehaerys I Targaryen.
In 55 AC, Queen Alysanne Targaryen arranged a marriage between Lord Uther Peake and Lady Prunella Celtigar, a lady-in-waiting to the queen and the daughter of Lord Edwell Celtigar. The marriage was considered an exceptional match for Prunella and a triumph on the queen's behalf.