The journey to France had been
undertaken without the permission of the King of
England, Henry IV, probably because Henry would never
have given it. So Prince James was conveyed to London
where he was immediately imprisoned in the Tower of
London. His father Robert III hearing that his son had
been captured at sea by pirates died soon after
receiving the news. Knowing that he was dying he is
reputed to have said 'Bury me in a midden (a dunghill or
refuse heap) and write, "Here lies the worst of kings
and the most wretched of men".
It is believed that it was her influence together with a ransom payment of £40,000 that eventually secured James I release. James married Joan and the couple returned to Scotland in 1424 where James was crowned. He ruled until 20 February 1437, when at around midnight, he was assassinated by another uncle, Walter, Earl of Atholl.