From A Wiki of Ice and Fire
|Book||The Hedge Knight (appears)|
Wate was a guardsmen in service to House Targaryen during the reign of King Daeron II Targaryen.
Wate is one of the guardsmen who accompanied Prince Aerion Targaryen to Ashford for the tourney at Ashford Meadow. He helped Prince Aerion destroy the puppeteer's stall after Aerion took issue with their skit involving a dragon.