He was a son of James Fitzgerald, 1st Duke of Leinster[?] and his duchess, the former Lady Emily Lennox.
... (AIS) Anemia sideroblastic spinocerebellar ataxia[?] Anemia, Diamond-Blackfan[?] Anemia, Hypoplastic, Congenital[?] Anemia, Pernicious[?] Anemia, ...