page_title: Churches of Rome
section_title: 4th century
hierarchical_section_title: Churches of Rome / Notable churches by construction time / 4th century
caption_attribution_description: Not really a temple, but a vestibule opening into a hall of Vespasian's forum of Peace, which now houses the church of SS. Cosma e Damiano.palatine view of temple of romulus
context_page_description: There are more than 900 churches in Rome,
  including some notable Roman Catholic Marian churches. Most, but not all, of these are Roman Catholic.
  The first churches of Rome originated in places where Christians met. They were divided into three categories:
  the houses of private Roman citizens
  the deaconries
  other houses holding a titulus
context_section_description: Archbasilica of Saint John Lateran (324)
  Old St. Peter's Basilica (324)
  Santa Croce in Gerusalemme (325)
  Santa Susanna (330)
  San Marco (336)
  Santa Maria in Trastevere (340s)
  San Marco Evangelista al Campidoglio (336)
  Santa Anastasia (early-4th century)
  Santa Maria in Ara Coeli
  Santa Bibiana (363)
  Santi Nereo e Achilleo (before 377)
  Saint Paul Outside the Walls (386)
  Santi Giovanni e Paolo (Rome) (398)
  Lateran Baptistery
  Santa Balbina
  San Sisto Vecchio
  San Clemente
  San Lorenzo in Lucina
  Santi Marcellino e Pietro
  San Lorenzo fuori le Mura
  Santa Pudenziana
  San Sebastiano fuori le mura
  Sant'Anastasia al Palatino
  San Marcello al Corso (probably late-4th century)
  Santi Bonifacio e Alessio
  San Martino ai Monti
  San Sisto Vecchio
  Sant'Ambrogio della Massima
  San Cesareo de Appia
  Santa Costanza
  Santi Bonifacio ed Alessio
  San Martino ai Monti 
  Santi Quattro Coronati
  San Crisogono
caption: Santi Cosma e Damiano
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