Efa verch Blettrws
She was an only child. Efa verch Blettrws is no longer alive.
General Notes
pg 113, Burke's " A Genealogical History of the Dormant, Abeyant, Forfeited and Extinct Peerages of the British Empire" published 1883
Efa verch Blettrws' family with Pr. Maredudd ap Bledyn of Powys
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Efa verch Blettrws 