| Family Trees: | Bostock - Part 1A , Bostock - Part 1B , Bostock - Part 1C | |
| Son of: | Sir Henry de Bostock (1205) and Elenor (1207) - according to the Visitations and Harleyan Manuscript 1535 | VCB, HMS |
| Son of: | Gilbert de Bostock (1205) and ?? - according to Ormerod's History of Cheshire | OHC |
| Born: | c. 1240 | FBT |
| Died: | | |
| Married: | (1)
Elizabeth (1227) , (2) Amice (1232) |
VCB, HMS, OHC OHC |
| Children (1): | Edward de (1245) or Philip de (1245) , Hugh de (1247) , Joceram de (1249) | OHC, FBT |
| Children (2): | Amice (1251) , Gilbert de (1255) | FBT |
| Sometime before 1229 William de Bostock, grandson of Warin, acknowledged in court that he held his land from Warin de Vernon, Baron of Shipbrook, by ploughing and shearing his lord's demesne lands. This acknowledgement very much supports that William and Warin are likely descended from Osmer who also held Bostock by consent of a Vernon, Baron of Shipbrook. |
| |
| Said to have been present at the battle of Evesham in 1265 |
OHC | |