Baron Nicholas de Martin
Nicholas was born in 1193 in Dartingham, Devonshire, England.

 Maude de Brienne
Maude was born about 1193 in Pembrokeshire, Wales.  She died on September 9th, 1279.

 Sir William de Martin
William was born in 1257 in Combmartin, Devonshire, England.  He died before October 8th, 1324.