Piers De Gaveston Of Cornwall Earl
Piers De Gaveston was born about 1284.  He died on June 19th, 1312.  He was buried in June 1312.

 Margaret De Clare
Margaret was born about 1294 in , , , England.  She died on April 9th, 1342 in , , , France.  She was buried in April 1342 in , , , France.

 Amy De Gaveston Damsel
Amy was born after January 6th, 1312.  She died after 1334.  She was buried after 1334.