Edward, the Black Prince

Lionel

'Duke of Clarence'

John, of Ghent

'Duke of Lancaster'

Spouse: Constance, of Castile

Margaret

'Countess of Pembroke'

Isabella

'Countess of Bedford'

Edmund Langley

'1st Duke of York'

John, of Ghent

'Duke of Lancaster'

Spouse:

Katherine née de Roet Swynford

Thomas

'Duke of Gloucester'

Joan

John, of Ghent

'Duke of Lancaster'

Spouse: Blanche, of Lancaster

Mary, of Waltham

'Duchess of Brittany'