HB
Helena Byron
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Helena Byron of Clayton was the first Lady Mountjoy; the poet Byron's family were of her house.
Research notes
✓ HELENA, da. of Sir JOHN BYRON of Clayton, co. Lancaster, by Margaret, da. of John Booth of Barton (note-only above - the BYRONS of Clayton/Newstead); 1st wife of the 1st Baron; mother of John 3rd Baron (our line). Source: Cokayne, Complete Peerage (1st edn), 'Mountjoy' pp.398-401, photographed and read 6 Aug 2026; contested rungs note-only, not hardened.