John III de Dinham
John III was born about 1340 in Hartland, Devonshire, England.  John III is no longer alive.

 Muriel de Courtenay
Muriel was born about 1350 in Woodhuish, Devonshire, England.  She died on August 12th, 1389.  She was buried in Hartland Abbey, England.

 Muriel de Dinham
Muriel was born about 1380 in Hartland, Devonshire, England.  She died after 1412.