The preface to the second volume of his History of the Saracens is dated from Cambridge Castle, where he lay a prisoner for debt. He died in the year 1720. His chief work is The History of the Saracens, in 2 volumes octavo, 1708-18, which long enjoyed a great reputation; unfortunately Ockley took as his main authority a MS. in the Bodleian of Pseudo-Wakidi's Futúh al-Shám, which is rather historical romance than history.
Note: the above text has been copied from the 9th edition (1880s) of an unnamed encyclopedia