JF
Joan FitzGerald of Desmond
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Joan FitzGerald was daughter and heiress of the Earl of Desmond, and through her the blood of the Desmond Geraldines, the O'Briens of Thomond and, further back, Gerald and Nest themselves, runs into the Roches and so down this line.
Research notes
✓ JOAN, 'da. and h.' of JAMES FitzTHOMAS (FITZGERALD), EARL OF DESMOND (styled 9th in CP), by MARGARET, da. of TEIGE O'BRIEN of THOMOND; 1st wife of Maurice 2nd Viscount; mother of David 3rd Viscount (our line). THE DESMOND GATEWAY - documented in CP, not tradition. Source: Cokayne, Complete Peerage (1st edn), 'Fermoy' pp.326-29, photographed and read 6 Aug 2026 (CP notes the pre-1461 pedigree 'extremely obscure'; contested rungs note-only, not hardened).