When was Avempace born?
Avempace
c.1085
Avempace (c.1085– 1138) is the Latinate form of Ibn Bâjja (Arabic: ابن باجة‎), full name Abû Bakr Muḥammad Ibn Yaḥyà ibn aṣ-Ṣâ’igh at-Tûjîbî Ibn Bâjja al-Tujibi (أبو بكر محمد بن يحيى بن الصائغ التجيبي بن باجة ), was an Arab[1] 
Andalusian polymath: his writings include works regarding astronomy, physics, and music, as well as philosophy, medicine, botany, and poetry.[2]