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John III the Good (in Breton Yann III, in French Jean III; 8 March 1286 – 30 April 1341) was Duke of Brittany, from 1312 to his death and 5th Earl of Richmond from 1334 to his death. He was the son of Arthur II, Duke of Brittany, and his first wife Marie, Viscountess of Limoges.
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- Arthur II, Duke of Brittany
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Mar 15, 2024 · John III (born 1286—died 1341) was the duke of Brittany (from 1312), son of Arthur II. His death without heirs resulted in the War of the Breton Succession, pitting two indirect heirs, John of Montfort and Charles of Blois. Despite three marriages—to Isabella of Valois, Isabella of Castile, and Joan of Savoy—he was left childless and ...
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John III the Good (Yann III) 1312–1341 8 March 1286 Château de Champtoceaux, Maine-et-Loire eldest son of Arthur II and Marie of Limoges (1) Isabella of Valois 18 February 1298 no issue (2) Isabella of Castile and León Burgos 21 June 1310 no issue (3) Joan of Savoy Chartres 21 March 1330 no issue 30 April 1341 Caen aged 55
Arthur II's son by Mary of Limoges, John III became Duke but failed to produce a living heir, despite three marriages. John III's succession efforts were focused on his attempts to deny his half brother, John of Montfort from inheriting the Ducal Crown. He attempted to name the King of France as heir in an act that defied all precedents to ...
John III the Good (in Breton Yann III, in French Jean III; 8 March 1286 – 30 April 1341) was Duke of Brittany, from 1312 to his death and 5th Earl of Richmond from 1334 to his death. He was the son of Arthur II, Duke of Brittany, and his first wife Marie, Viscountess of Limoges.
John II, Duke of Brittany. Beatrice of England. John of Brittany ( French: Jean de Bretagne; c. 1266 – 17 January 1334), 4th Earl of Richmond, was an English nobleman and a member of the Ducal house of Brittany, the House of Dreux. He entered royal service in England under his uncle Edward I, and also served Edward II.
Duke John III of Brittany died in 1341 without heirs. The succession was contested by his half-brother, John de Montfort, who was backed by Edward III of England, and by Charles of Blois, who had married Jeanne de Penthièvre, a niece of the late duke. Charles and Jeanne were supported by Philip VI, John II, and Charles V of France.
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