John de Mowbray, 3rd Duke of Norfolk
English magnate (1415-1461) · United Kingdom · On the map · Politicians · Died at 46
John Mowbray, 3rd Duke of Norfolk,, Earl Marshal was a fifteenth-century English magnate who, despite having a relatively short political career, played a significant role in the early years of the Wars of the Roses.
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Mowbray's 1433 petition to parliament over the lordship of Arundel and the right to the earldom of Arundel
The 1436 Siege of Calais, as illustrated in Martial d'Auvergne's Vigiles du roi Charles VII![Framlingham Castle, still remarkably preserved in 2008, was Mowbray's East Anglian headquarters, from where he directed many of the attacks on his rivals and opponents.[51]](https://upload.wikimedia.org/wikipedia/commons/thumb/4/48/Framlingham_Castle_-_geograph.org.uk_-_947522.jpg/500px-Framlingham_Castle_-_geograph.org.uk_-_947522.jpg)
Framlingham Castle, still remarkably preserved in 2008, was Mowbray's East Anglian headquarters, from where he directed many of the attacks on his rivals and opponents.[51]
The Tower of London; both Mowbray and his arch-enemy Suffolk were imprisoned here at different stages of their careers.
The ruins of Thetford Priory, Norfolk, in 2006, where John Mowbray was buried.![Page from the Bruges Garter Book with Mowbray's arms at centre left: Gules, three lions passant gardant or, in chief a label of three points argent.[140]](https://upload.wikimedia.org/wikipedia/commons/thumb/3/34/BrugesGarterBook_SuccessorsTo_JeanDeGrailly_Knight4_Stall_S5_%285%29.png/330px-BrugesGarterBook_SuccessorsTo_JeanDeGrailly_Knight4_Stall_S5_%285%29.png)
Page from the Bruges Garter Book with Mowbray's arms at centre left: Gules, three lions passant gardant or, in chief a label of three points argent.[140]Awards
About this person
Mowbray was born in 1415, the only son and heir of John de Mowbray, 2nd Duke of Norfolk, and Katherine Neville. He inherited his titles upon his father's death in 1432. As a minor he became a ward of King Henry VI and was placed under the protection of Humphrey, Duke of Gloucester, alongside whom Mowbray would later campaign in France. He seems to have had an unruly and rebellious youth. Although the details of his misconduct are unknown, they were severe enough for the King to place strictures upon him and separate him from his followers. Mowbray's early career was spent in the military, where he held the wartime office of Earl Marshal. Later he led the defence of England's possessions in Normandy during the Hundred Years' War. He fought in Calais in 1436, and during 1437-38 served as Warden of the Eastern March on the Anglo-Scottish border, before returning to Calais.
