Ahmad ibn Qasim al-Hajari

[1] He was later sent as an envoy by Sultan Zidan Abu Maali of Morocco who sent him to France and Netherlands to negotiate the release of some Moriscos who were captured by privateers and thrown on the shores of the mentioned countries.

[2] The reason for the visit to France seems to have been that some French corsairs, falsely offering a transit to Morocco to the Moriscos being expulsed from Spain after 1609, had instead captured them and their belongings.

[4][5] Through the introduction of Erpenius, Al-Hajari also met with the French Arabist Étienne Hubert d'Orléans, who had been a court physician for Moroccan ruler Ahmad al-Mansur in Marrakech from 1598 to 1601.

[2] His book mentions the discussion for a combined offensive on Spain,[7] as well as the religious reasons for the good relations between Islam and Protestantism at the time: Their teachers [Luther and Calvin] warned them [Protestants] against the Pope and the worshippers of Idols [referring to the Islamic view of Catholic image veneration]; they also told them not to hate the Muslims because they are the sword of God in the world against the idol-worshippers.

His chronicles are titled: The supporter of religion against disbelievers and the unsheathed sword on heathens (Arabic: ناصر الدين على القوم الكافرين وهو السيف الأشهر على من كفر, Kitāb Nāṣir al-dīn ʻalā ʼl-qawm al-kāfirīn [ar], also shortened to Kitāb Nāṣir al-dīn), which he authored in 1037 AH/1637 CE at the request of a Tunisian Cheikh.

Thomas Erpenius received Lessons in Arabic grammar under al-Hajari. Then he wrote, Grammatica Arabica in 1617.
Al-Hajari discussed an alliance with Maurice of Orange .