| William de Ros Baron de Ros (~1255 - 1316) |
Bartholomew de Badlesmere Knt., 1st Lord de Badlesmere, etc. (1275 - 1322) |
| Maude (Matilde) de Vaux (~1257 - ) |
Margaret de Clare ( - 1333) |
| William de Ros 2nd Lord Ros of Helmsley | Margery de Badlesmere |
| b. abt 1291, Of Helmsley, Yorkshire, England; Also Of Castle, Wark, Northumberland, England d. 3 Feb 1342/3 bur. Priory, Kirkham, Yorkshire, England occ. cen. im. . ud. |
b. 1306, Of Castle Badlesmere, Kent, England d. 18 Oct 1363, Helmsley, Yorkshire, England bur. occ. cen. im. . ud. |
| Millicent de Ros William de Ros Knt., 3rd Lord Ros of Helmsley [--?--] M #2 de Ros Thomas de Ros Knt., 4th Lord Ros of Helmsley, etc. Alice de Ros |