What do Ibn al-Shatir and Ibn Tufail have in common?
Ibn Tufail Ibn Tufail (c. 1105 – 1185) (full Arabic name: أبو بكر محمد بن عبد الملك بن محمد بن طفيل القيسي الأندلسي "Abu Bakr Muhammad ibn Abd al-Malik ibn Muhammad ibn Tufail al-Qaisi al-Andalusi"; Latinized form: "Abubacer Aben Tofail"; Anglicized form: "Abubekar" or "Abu Jaafar Ebn Tophail") was a Moorish Andalusian Muslim polymath: a writer, novelist, Islamic philosopher, Islamic theologian, physician, astronomer, vizier, and court official.
Al-Ashraf Khalil Al-Ashraf Salāh ad-Dīn Khalil ibn Qalawūn (Arabic: الملك الأشرف صلاح الدين خليل بن قلاوون‎ ‎ ); (c. 1260s – 14 December 1293) was the eighth Mamluk sultan between November 1290 until his assassination in December 1293. He was well known for conquering the last of the Crusader states in Palestine in the capture of Acre in 1291.