Quem se casou com John Holland, 1st Duke of Exeter?

John Holland, 1st Duke of Exeter, 1st Earl of Huntingdon (c. 1352 – 16 January 1400) of Dartington Hall in Devon, was a half-brother of King Richard II (1377–1399), to whom he remained strongly loyal. He is primarily remembered for being suspected of assisting in the downfall of King Richard's uncle Thomas of Woodstock, 1st Duke of Gloucester (1355–1397) (youngest son of King Edward III) and then for conspiring against King Richard's first cousin and eventual deposer, Henry Bolingbroke, later King Henry IV (1399–1413).

Isabel Plantageneta (Burford, 21 de fevereiro de 1363 — 24 de novembro de 1426) foi a terceira criança a nascer da união de João de Gante, 1.º Duque de Lencastre com a sua primeira esposa, Branca de Lencastre.