Pontefract on the Thames

Permit me to ask, through the medium of your useful publication, where Pontefract *on the Thames* was situate in the fourteenth century? Several documents of Edw. II. are dated from Shene (Richmond); in 1318, one from Mortelak; in 1322, one from Istelworth; and several are dated *Pountfrcyt*, or *Pontem fractum super Thamis*. (See Rymer's *Fœdera*). It is very clear that this Pountfrcyt on the Thames must have been at no great distance from Shene, Mortlake, and Isleworth, also upon the Thames; and this is further corroborated by the dates following, from the places alluded to, so closely.