Geoffrey de Dinham
Geoffrey was born about 1200 in Hertland, Devonshire, England.  He died on December 26th, 1258.

 Oliver de Dinham
Oliver was born in 1234 in Hertland, Devonshire, England.  Oliver is no longer alive.

 Joanna de Dinham
Joanna was born in Hertland, Devonshire, England.