This was even noted by Tomé Pires, the Portuguese ambassador to China who visited Iran in 1511–12, who when referring to Ismail noted: "He (i.e. Ismail) reforms our churches, destroys the houses of all Moors who follow (the Sunnah of) Muhammad…"[48] He enforced the ritual and compulsory cursing of the first three Sunni Caliphs (Abu Bakr, Umar, and Uthman) as usurpers, from all mosques, disbanded Sunni Tariqahs and seized their assets, used state patronage to develop Shia shrines, institutions and religious art and imported Shia scholars to replace Sunni scholars.[49][50][51] He killed Sunnis and destroyed and desecrated their graves and mosques. This caused the Ottoman Sultan Bayezid II (who initially congratulated Ismail on his victories) to advise and ask the young monarch (in a "fatherly" manner) to stop the anti-Sunni actions.