John of Gaunt
When John of Gaunt died in 1399, his estates and titles were declared forfeit to the crown as King Richard II named Hereford a traitor and commuted his sentence to exile for life.  Henry Bolingbroke returned from exile to reclaim his inheritance and depose Richard. Bolingbroke then reigned as King Henry IV of England (1399–1413), the first of the descendants of John of Gaunt to hold the throne of England.