| Ludwig of Bavaria Duke of Bavaria |
Henry of Lancaster K.G., Earl of Lancaster, Derby, etc. (~1310 - 1361) |
| Marguerite of Hainault Countess of Hainault & Holland (1311 - ) |
Isabel de Beaumont (1312 - >1361) |
| William (or Guillaume) I of Bavaria D. of Bavaria, C. of Hainault, Holland, etc. | Maud Plantagenet of Lancaster Duchess of Bavaria |
| b. abt 1327 d. Apr 1389, Castle of Quesnoi bur. occ. cen. im. . ud. |
b. abt 1339, Aged 22 in 1361 d. 10 Apr 1362, England - of the plague bur. occ. cen. im. . ud. |
| Spouses: 1, 2 |