San Marco in Sylvis is a

Roman Catholic The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...

church located in

Afragola Afragola (; , ) is a city and (municipality) in the Metropolitan City of Naples, in Italy. It is one of the 100 largest Italian cities, with a population of 61,000. The communal territory, measuring , borders the municipalities of Acerra, Cas ...

, Metropolitan city of Naples, region of

Campania Campania is an administrative Regions of Italy, region of Italy located in Southern Italy; most of it is in the south-western portion of the Italian Peninsula (with the Tyrrhenian Sea to its west), but it also includes the small Phlegraean Islan ...

, Italy.

History

A church at the site is first documented from 1179, patronized by King

William II of Sicily William II (December 115311 November 1189), called the Good, was king of Sicily from 1166 to 1189. From surviving sources William's character is indistinct. Lacking in military enterprise, secluded and pleasure-loving, he seldom emerged from hi ...

. The church has undergone various reconstructions over the centuries, including a major refurbishment in 1563 It contains a series of 16th century frescoes. It putatively contains a stone upon which St Mark sat, which is venerated for its ability to heal the sick through miracles.La Cooltura
short history.

References

{{coord missing, Italy 12th-century Roman Catholic church buildings in Italy Churches in the Metropolitan City of Naples