1037 - 1099 (62 years)
| Lord of Moiety William FitzWilliam | |
| B: | Abt 1134 |
| Cheshire, England | |
| D: | 1192 |
| Cheshire, England | |
| Alina de Clare | |
| B: | 1156 |
| Pembrokeshire, Wales | |
| Baron of Windsor and Pembroke William FitzGerald | |
| B: | 1100 |
| Pembrokeshire, Wales | |
| D: | 1173 |
| Pembrokeshire, Wales | |
| Maria de Carew | |
| B: | Abt 1100 |
| Cheshire, England | |
| D: | 1150 |
| Pembrokeshire, Wales | |
| Constable of Pembroke Gerald FitzWalter | |
| B: | 1070 |
| Windsor, Berkshire, England | |
| D: | 1136 |
| Pembrokeshire, Wales | |
| Nest verch Rhys | |
| B: | Abt 1085 |
| Carmarthenshire, Wales | |
| D: | Abt 1136 |
| Gwynedd, Wales | |
| William de Windsor, III | |
| B: | 1146 |
| London, England | |
| D: | 1194 |
| London, England | |
| Edyth Plantagenet | |
| B: | 1162 |
| Cumberland, England | |
| M: | 1188 |
| Haccombe, Devon, England | |
| D: | 1189 |
| London, England | |
| William Fitz de Windsor, II | |
| B: | Abt 1100 |
| Surrey, England | |
| D: | 1176 |
| Normandy, France | |
| Hawys | |
| B: | 1104 |
| Surrey, England | |
| D: | 1185 |
| William FitzWalter de Windsor, I | |
| B: | 1068 |
| Pembroke, Pembrokeshire, Wales | |
| D: | Aft 1135 |
| Wales | |
|
| Constable of Windsor Walter FitzOthere | |
| B: | 1037 |
| Windsor, Berkshire, England | |
| D: | 1099 |
| Carew, Pembrokeshire, Wales | |
| Beatrix de Offley | |
| B: | Abt 1041 |
| Offaly County, Ireland | |
| M: | 1080 |
| Berkshire, England | |
| D: | 1082 |
We make every effort to document our research. There is a lot of information that I do not have, and I know there are mistakes in this tree. My feelings will not be hurt if you give me corrections or additional information, especially if you can provide sources for the information.
