محمد الشيخ
By 1554, the Turks had reached Algiers. The governor of Oran, Count Alcaudete, allied himself with Moroccan Sultan Mohammed ash-Sheikh against them. Nine years later, in 1563, Álvaro de Bazán, Marquis de Santa Cruz, built the fort of Santa-Cruz, strategically placed at the top of a mountain, l'Aïdour, more than above the sea, directly to the west of the city. Pedro Garcerán de Borja, Grand Master of the Order of Montesa, was captain of Oran when, on July 14, 1568, John of Austria (the illegitimate son of Charles I and paternal half-brother of King Philip II), led a flotilla of 33 galleys against the Algerians.