|Honored in||Roman Catholic Church|
|Major shrine||Basilica of Saint Marinus|
|Attributes||depicted as a bearded layman with a stonemason's hammer; also depicted as a young deacon with a hammer; depicted serving as a deacon to Saint Leo the Great or Gaudentius of Rimini; two oxen near him.|
Saint Marinus was the founder of the world's oldest surviving republic, San Marino, in 301. Tradition holds that he was a stonemason by trade who came from the island of Rab on the other side of the Adriatic Sea (modern Croatia), fleeing persecution for his Christian beliefs in the Diocletianic Persecution. He became a Deacon, and was ordained by Gaudentius, the Bishop of Rimini, until he was accused by an insane woman of being her estranged husband, when he fled to Monte Titano to live as a hermit. There he built a chapel and monastery. Marinus was canonised and later, the State of San Marino grew up from the centre created by the monastery. His memorial day is September 3, commemorating the day of the year when he founded San Marino, which is also the state's national holiday.
According to legend, he died in the Winter of 366 and his last words were: "Relinquo vos liberos ab utroque homine." ("I leave you free from both men"). This somewhat mysterious phrase is most likely to refer to the two "men" from whose oppressive power Saint Marinus had decided to separate himself, becoming a hermit on Mount Titano: respectively the Emperor and the Pope. This affirmation of freedom (first and foremost fiscal franchise) from both the Empire and the Papal States, however legendary, has always been the inspiration of the tiny republic.
- Radovan Radovinovič, The Croatian Adriatic Tourist Guide, pg. 127, Zagreb (1999), ISBN 953-178-097-8
- "The Republic of San Marino", William Miller, The American Historical Review, Vol. 6, No. 4 (Juli 1901), pages 633–649)
- Saints of September 4: Marinus of San Marino, Hermit Deacon (on this website, September 4 is incorrectly indicated as Saint Marinus' day)
- Patron Saints Index: Saint Marinus
- (Italian) San Marino