Katherine Mortimer | |
|---|---|
| Countess of Warwick | |
 Tomb effigies of Katherine Mortimer and Thomas de Beauchamp, 11th Earl of Warwick, St. Mary's Church, Warwick | |
| Born | 1314 Ludlow Castle, Shropshire, England |
| Died | 4 August 1369 (aged 55) |
| Noble family | Mortimer |
| Spouse(s) | Thomas de Beauchamp, 11th Earl of Warwick KG |
| Issue See details | Thomas de Beauchamp, 12th Earl of Warwick William de Beauchamp, 1st Baron Bergavenny Maud de Beauchamp, Baroness de Clifford Philippa de Beauchamp, Countess of Stafford Alice de Beauchamp, Baroness Beauchamp and Lady Gournay |
| Father | Roger Mortimer, 1st Earl of March |
| Mother | Joan de Geneville, Baroness Geneville |
Katherine Mortimer, Countess of Warwick (1314 – 4 August 1369) was the wife of Thomas de Beauchamp, 11th Earl of Warwick KG, an English peer, and military commander during the Hundred Years War. She was a daughter and co-heiress of Roger Mortimer, 1st Earl of March and Joan de Geneville, Baroness Geneville.
Sometime before 1355, she became an important figure at the royal court of King Edward III.