Nasir al-Din al-Tusi
Muhammad ibn Muhammad ibn al-Hasan al-Tūsī ( 18 February 1201 – 26 June 1274 ) , better known as Nasir al-Din al-Tusi ( ; or simply Tusi in the West ) , was a Persian polymath , architect , philosopher , physician , scientist , and theologian . 
<triplet> Nasir al-Din al-Tusi <subj> theologian <obj> field of work