Michaud, J.F. History of the crusades, 1853: t.p. (W. Robson) [info. from InU]
Wikipedia 4 May 2020: (William Robson (1785/6–1863) was a British author and translator. he became a teacher, and around 1813 he formed a close friendship with John Taylor the publisher. Through Taylor he was on the fringes of the group producing The London Magazine of 1820 to 1829. From 1835 he concentrated on writing. He died on 17 November 1863.) https://en.wikipedia.org/wiki/William_Robson_(writer)