 On 27 April 750, Abdullah ibn Ali, the Abbasid ruler Abu Al-Abbas as-Saffah's uncle, marched to Antipatris (Abu Futrus) on 25 June.He had invited 80 members of the Umayyad dynasty, whom the Abbasids were at war with, to the town with promises of fair surrender terms only to have them massacred.On 5 April 885, at the banks of the Auja River, Abu'l-Abbas ibn al-Muwaffaq fought against Khumarawayh ibn Ahmad ibn Tulun in the Battle of Tawahin ("The Mills").