Joan Marshal Peerage person ID=203446 (1150–1234) Parents William Marshal, 1st Earl of Pembroke Isabel de Clare, 4th Countess of Pembroke Children Joan de Munchensi Siblings Maud Marshal Sibyl Marshal Anselm Marshal, 6th Earl of Pembroke Gilbert Marshal, 4th Earl of Pembroke William Marshal, 2nd Earl of Pembroke Isabel Marshal Walter Marshal, 5th Earl of Pembroke Richard Marshal, 3rd Earl of Pembroke Eva Marshal Partners Warin de Munchensy