Joan de Hastang was born in England to Robert de Hastang (-1265) and Joane de Curli (-c1265) and died 1290 England of unspecified causes. She married Roger de Swinnerton (-c1298) .
Children
| Name | Birth | Death | Joined with |
| Roger de Swinnerton (-1337) | |||
| John de Swinnerton (-c1340) | England | 1340 England | Anne de Montgomery (-c1340) |
| Richard de Swinnerton (-aft1350) | |||
| Nicholas de Swinnerton (-1357) | |||
| Stephen de Swinnerton (-aft1348) | |||
| Alexander de Swinnerton (-1324) | |||
| Ellen de Swinnerton (-1340) | |||
Siblings
| Name | Birth | Death | Joined with |
| Robert de Hastang (-1292) | |||
| Joan de Hastang (-1298) | England | 1290 England | Roger de Swinnerton (-c1298) |