Muley Xeque (Arabic: مولاي الشيخ Mawlay al-Shaykh) was a Moroccan prince, born in Marrakech in 1566 and died in Vigevano (Lombardy, Italy) in 1621.
On November 3, 1593 he was baptized in the Monastery of San Lorenzo de El Escorial, sponsored by Philip II, after whom he was named.
Upon the expulsion of the Moriscos, the presence of a former Muslim in the court became uncomfortable, so Muley Xeque moved to the Spanish possessions in Italy.
A chronicler of Vigevano, Matteo di Cherasco Gianolio, picked up the eventful life of Muley Xeque in a book called the Memorie storiche intorno la vita del real principe di Marocco Muley-Xeque, another of the historical sources on the life of this character.
The Madrid chronicler Mesonero Romanos rejects the claim about Calle del Príncipe, pointing out that the name was already in use in 1568, Muley did not reach Spain until at least 1580 and was not a prince until his baptism in 1593.