5th Earl Devon * William de Vernon
* William was born in 1155 in Exeter, Devon ENG.  He died at the age of 62 on September 8th, 1217 in Christ Church, Exeter, Devon ENG.

 * Mabel de Beaumont
* Mabel was born in 1162.  She died after May 1st, 1204.

 * Mary de Reivers de Vernon
* Mary de Reivers was born in 1183 in Exeter, Devon ENG.  She died at the age of 59 in 1242.