| +---------------+ | William = Matilda, dau. of Henry last Earl of | Earl of Lancaster. She Ulster. | = 2ndly Ralph Stafford. | +-----------------+ | Elizabeth de Burgh = in 1352 Lionel Duke Lady of the | of Clarence second Honour of Clare.[429]| son and heir of Edw. +---------------------------------+ III. The title | _de Clarentia_ is taken | from his wife, Lady of the Honour | of Clare, and is also recorded in | that of _Clarenceux_, or Clarence, | king-of-Arms, an heraldic title | derived from the duke’s. | Philippa de Clarentia = Edmund Mortimer | Earl of March. | Philippa = John Hastings Earl of Pembroke. The descendant of the Duke and Duchess of Clarence became Edward IV., and the ‘honour of Clare’ was thenceforth merged in the crown, and now forms part of the duchy of Lancaster. TABLE II. PEDIGREE OF VALENCE