Sir William of Powderham Courtenay Knight  24,25
- Born: Abt 1451, Powderham, Devonshire, England
- Marriage: Cecily Cheney  about 1476 in Pinhoe, Devonshire, England
- Died: Bef 10 Jun 1512
The Complete Peerage vol.IV,p.335.
William married Cecily Cheney  [MRIN: 7753], daughter of John of Pinhoe Cheney  and Elizabeth Hill , about 1476 in Pinhoe, Devonshire, England. (Cecily Cheney  was born about 1455 in Pinhoe, Devonshire, England and died after 1511.)