:Comment - I cannot understand the above point, the link given shows that the frontespiece of the 1571 Cracow edition uploaded on hebrewbooks.org clearly says in Hebrew אלכסנדר זוסלין הכהן - Alexander Suslin ha-Cohen in bold. The Hebrew language index on hebrewbooks.org (not that this is WP:RS) also clearly says אלכסנדר זוסלין הכהן - following what is on the 1571 cover, and the hebrewbooks.org English language index says Alexander Suslin, no ha-Cohen, reflecting that the appellative ha-Cohen is not commonly applied to medieval authors with a distinct surname in English sources and bibliographies.