The sieges of Tyre and Acre are most copiously described by Bernard Thesaurarius (de Acquisitione Terrae Sanctae, c. 167-179), the author of the Historia Hierosolymitana (p. 1150 - 1172, in Bongarnius), Abulfeda (p. 43 - 50), and Bohadin (p. 75 - 179).