The Aydinid fleet, comprising eighteen galleys and eighteen other vessels under the personal command of the Aydinid emir Mehmed Beg, sets sail from the port of Ephesus in July 1319.

It is s met off Chios by a Hospitaller fleet of twenty-four ships and eighty Hospitaller knights, under Albert of Schwarzburg, to which a squadron of one galley and six other ships had been added by Martino Zaccaria of Chios.

The battle ends in a crushing Christian victory: only six Turkish vessels manage to escape capture or destruction.

This victory is followed up by ...