Santi Marcellino e Pietro ad Duas Lauros

Santi Marcellino e Pietro ad Duas Lauros is a church in the Prenestino-Labicano quarter of Rome, Italy.

Located on the ancient Via Labicana on land once owned by Helena, mother of Constantine, it was along the southern part of the Via Francigena.

Nearby, in the present Park of Centocelle, was the great Roman Villa "ad Duas Lauros"[1] which was owned by Helena and known as the home of the Flavian Christians.

[2] It dated from the Republican era to the 5th-6th century AD when it reached its maximum extent of almost two hectares and was the place of death of Valentinian III.

In 1256, Pope Alexander IV had the martyrs' relics translated to the recently rebuilt Santi Marcellino e Pietro al Laterano at the intersection of Via Labicana with Via Merulana.