Henry V of England take a wider share in politics. From January 1410, helped by his uncles Henry Beaufort and Thomas Beaufort, legitimised sons of John of Gaunt, he had practical control of the government. Both in foreign and domestic policy he differed from the king, who discharged the prince from the council in November 1411. The quarrel of father and son was political only, though it is probable that the Beauforts had discussed the abdication of Henry IV. Their opponents certainly endeavoured to defame the prince. It may be that the tradition of Henry's riotous youth, immortalised by Shakespeare, is partly due to
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.