Robert de Swinnerton/Swynnerton was born in England to Robert de Swinnerton (-1225) and Mabel Unknown (-aft1225) and died circa 1243 England of unspecified causes.
Collections for a History of Staffordshire, Volume 7
"This last Robert de Swynnerton (father of this Robert) seems to have died about 1224, and in January, 1225, his widow Mabel was suing her son Robert in Bance for her dower.
In 1227, an assize was taken at Salop to try whether Stephen de Hadton (Hatton), father of William, was seised in his demesne as of fee, when he died, of four virgates of land in Hadton, which land Robert de Swynnerton holds. By consent of the Justices, and because he is poor, Robert gave the land to William, and accepted his homage for it.
In November of the same year Robert de Swynnerton is plaintiff in a suit against Richard de Titteshovere (Tittensor), tenant, of one-third of twenty acres of wood in Wilstanswude. Robert afterwards gave two marks for license to accord, by which he remitted all his claims except common of herbage in the wood for all manner of cattle; and Richard gave to Robert a certain 'pscia' in the wood of Northwude, saving to Richard his common (of pasture) in the same wood; and saving to Mabel the mother of the said Robert de Swynnerton the third part of the said wood which she holds in dower.
By fine of 25th November, 1231, Ralph fitz Odo, surrenders to Robert de Swynnerton, plaintiff, three virgates of land and a mill in Peppelawe (Peplow in Shropshire). In return, Swinnerton guarantees him an annuity of 40s. receivable half-yearly at Swinnerton, with power to distrain upon that manor in case of arrears. He further pays him 10 marks down, and he fined one mark for license to make the accord.
In a list of Knight's fees given in the Tesas de Nevill, between 1240 and 1243, it is stated that Robert de Swynnerton holds one Knight's fee in Swynnerton of Nicholas, Baron of Stafford.
Robert de Swynnerton was succeeded by an heiress, Margery, probably his sister, whose husband John called himself de Swynnerton, and was probably a member of the same family."
Siblings
| Name | Birth | Death | Joined with |
| Robert de Swinnerton (-c1243) | England | 1243 England | |
| Margery de Swinnerton (-1257) | England | 1257 England | John de Swinnerton (-1254) |