Civitanova Marche is a comune (municipality) in the Province of Macerata in the Italian region Marche, located about 40 kilometres (25 miles) southeast of Ancona and about 25 km (16 mi) east of Macerata.n 1440, under Francesco Sforza, a new line of walls was built, while a fortress was erected to protect the port. The city, attacked by Turk pirates and struck by inner feuds and by the plague, started to decay from the 16th century. In 1551 pope Julius III ceded it to the Cesarini family.