De regimine sanitatis ad Soldanum Babyloniae.

Maimonides wrote De regimine sanitatis in the 1190s in Arabic as a private manual of health for the Sultan Al-Afdal, son of Saladin. It was translated from Arabic into Hebrew in 1244 by Moses ibn Tibbon, and the Hebrew text was the source for the Latin version made later in the century by the Jewish convert Johannes de Capua. Typeset by nuns, and printed by the Ripoli press, housed in the Dominican nunnery of Florence under the direction of the convent’s vicar, Fra Domenico, the Latin edition includes a separate responsum on medical matters that Maimonides wrote for Al-Afdal. Digital facsimile from Google Books at this link.