William Martin
William was born in 1257 in Combmartin, Devonshire, England.  He died after February 1322.

 Eleonor FitzPiers
Eleonor was born about 1257 in Dunster, Somersetshire, England.

 Edmund Martin
Edmund was born about 1284.

 Eleonor Martin
Eleonor was born about 1285.

 Joan Martin
Joan was born about 1291 in Barnstaple, Devonshire, England.  She died after January 1320 in Barnstaple, Devonshire, England.

 William Martin
William was born in 1293.