MF
Margery FitzAnthony
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Margery, daughter and coheir of Thomas FitzAnthony, Seneschal of Leinster, carried a share of the great Leinster inheritance into the house of Desmond.
Research notes
✓ MARGERY, da. and coheir of THOMAS FitzANTHONY, Seneschal of Leinster; wife of John FitzThomas of Desmond (d.1261); mother of Thomas FitzMaurice (our line). She brought DECIES. Standard well-documented medieval genealogy per the cited authorities (web-confirmed 7 Aug 2026); contested rungs note-only, not hardened.