Ali ibn Tawus al-Hilli

[2] He is known for his library and his numerous works which are still available in their original form and help us learn about the interests of Muslim scholars at the end of the Abbasid era.

Ibn Tawus apparently had good relations with the Caliphs of his time like Muntansir, however he refused to be involved in any political affairs.

It is said that he had returned to Hilla in 641 and had gone to Najaf in 645 and then to Karbala in 649 and to Samarra in 652 and on reaching Baghdad he stayed there until Mongols captured the city.

[2] However, Hulagu Khan gave the leadership of Alawites and then some cities like Baghdad to him which Ibn Tawus was reluctant to accept.

[2] Ibn Tawus inherited a big library and he himself wrote numerous books on different topics from theology and ethics to jurisprudence and astronomy some of which have been translated into Persian, Urdu and English.