The Duchess of Norfolk | |
|---|---|
| Reign | 1338–1399 |
| Predecessor | Thomas of Brotherton, 1st Earl of Norfolk |
| Successor | Thomas de Mowbray, 1st Duke of Norfolk |
| Born | c. 1322 Framlingham Castle, Suffolk, England |
| Died | 24 March 1399 |
| Buried | Grey Friars, London |
| Noble family | Plantagenet |
| Spouse(s) | John Segrave, 4th Baron Segrave Sir Walter Mauny |
| Issue | John de Segrave John de Segrave Elizabeth de Segrave Margaret de Segrave Thomas Mauny Anne Hastings, Countess of Pembroke Isabel Mauny |
| Father | Thomas of Brotherton |
| Mother | Alice de Hales |
Margaret of Norfolk or Margaret of Brotherton, Duchess of Norfolk in her own right (sometimes surnamed as "Margaret Marshal";[1] c. 1322–24 March 1399), was the daughter and eventual sole heir of Thomas of Brotherton, eldest son of King Edward I of England by his second marriage. In 1338, she succeeded to the earldom of Norfolk and the office of Earl Marshal. In 1397, she was created Duchess of Norfolk for life.