The "Young Pretender". Born in the Palazzo Muti in Rome, grandson of King James VII of Scotland (James II of England), who was exiled by William of Orange. The French-backed Jacobite Rebellion of 1745 was intended to restore the Stuarts to the throne, to which he regarded his father (the Old Pretender) to be rightful heir.
However, despite initial successes, the rebellion ended in disarray and bloody defeat at Culloden (in 1746). Stuart escaped to France with the help of Flora MacDonald and lived comfortably in exile. He died, despondent and a drunk, and is buried in St. Peter's Basilica in the Vatican.