Thomas de Clare, Lord of Thomond
The Complete Peerage vol.V,p701 note h, says his heirs name was Thomas.
Lord of Inchiquin and Yougal. also The Complete Peerage vol.VII,p.200.
Eleanor de Lancaster Plantagenet
The Complete Peerage vol.VII,p.401,note b.
Henry I of Brabant, Duke of Brabant
Duke of Louvain.