Gronwyn ap Einion
Gronwyn ap was born about 0950 in Dynevor, Llandyfeisant, Carmarthenshire, Wales.

 Ethelfleda verch Edwin
Ethelfleda verch was born about 0959.

 Edwin ap Gronwy
Edwin ap was born in 1020 in Tegeingl, Flintshire, Wales.  He died at the age of 53 in 1073 in Northop, Coleshill, Flintshire, Wales.