Henry IV of England king. The two dukes agreed to undergo a duel of honour (called by Richard II) at Gosford Green near Caludon Castle, Mowbray's home in Coventry. Yet before the duel could take place, Richard II decided to banish Henry from the kingdom (with the approval of Henry's father, John of Gaunt) to avoid further bloodshed. Mowbray himself was exiled for life. John of Gaunt died in February 1399. Without explanation, Richard cancelled the legal documents that would have allowed Henry to inherit Gaunt's land automatically. Instead, Henry would be required to ask for the lands from Richard. After some hesitation, Henry
Henry IV, Duke of Mecklenburg until John died in 1474 and Albert in 1483. After Albert's death, Magnus ruled alone. His younger brother Balthasar cared little about the business of government. Henry died in 1477 and was buried in the Doberan Abbey. Henry IV, Duke of Mecklenburg Henry IV, Duke of Mecklenburg (1417 – 9 March 1477) was from 1422 to 1477 Duke of Mecklenburg. Henry IV of Mecklenburg, because of his obesity and lavish lifestyle also called the "Henry the Fat", was the son of the Duke John IV of Mecklenburg and Catherine of Saxe-Lauenburg. He inherited Mecklenburg when his father died in 1422.