Hello, 

 "Mores" is an old-French word referring to "Maures" ie Moors. According to the context, Maure can be translated different ways but it was common in France at the time to refer to any Muslim as a Moor due to the conquest of Spain. I learnt this that way myself at primary school. I would not translate this by Marrocan in the current context. 
 Eugène Roger has his entry at BNF (Bibliothèque Nationale de France) ; the book of 1664 is the 2nd version of one of his book and is mentioned. 
 Here is the text in French: 
 :Au XVIIe siècle, on retrouve de nouveau à Césarée une population de quelque importance, composée, aux dires de F. Eugène Roger, d'une centaine de familles de Mores et de sept ou huit familles de Juifs, tous vivant dans un état misérable et dans la peur constante des corsaires maltais 
 which can be tranlsated as follows: 
 :At the 17th century, a population of some significance can be found again at Cesarea [and] that is, according to Eugene Roger, composed of a hundred families of Moors and of seven or eight families of Jews, all living in a misable state and in the constant fear of Malta corsars