Rhys Griffith
Rhys was born about 1340 in llansadwrn, Wales.  He died in 1380 in Polesworth, Staffordshire, England.

 Margaret la Zouche
Margaret was born about 1345 in Harringworth, Northampton, England.

 Thomas Griffith
Thomas was born about 1375 in Wichnor, Staffordshire, England.  He died in 1431.