13th-century medical doctors

Gregory Barhebraeus or Bar Hebraeus (; 1226 – 30 July 1286), also known as Abu al-Faraj and in Latin, Abulpharagius, was the maphrian Catholicos of the East (regional primate) of the Catholicate of the East under the Syriac Orthodox Church from 1264 until his death in 1286. He is recognised as one of the most accomplished and multifaceted academics of the medieval Syriac Christian world, with important contributions to the fields of theology, philosophy, history, linguistics, medicine, and the natural sciences.

physician and alchemist of Crown of Aragon

Muslim polymath

Arab physician and historian

Shams al-Din Muhammad Mahmud Shahrazuri () knowns as Shahrazuri () was a 13th-century Muslim physician, historian and philosopher. He was of Kurdish origin. It appears that he was alive in AD 1288. However, it is also said that he died in the same year.

alleguedly Spanish philosopher

Spanish physician

Mongol scientist and diplomat

Danish botanist (1164-1244)

author of the earliest medieval Arabic treatise intended solely for surgeons.

physician who wrote The Book of Simple Medicine

Syrian astrologer

Spanish linguist and astronomer