Saint Oliver of Ancona - also known as Oliver of Portonuovo, Oliverius or Liberius (died c. 1050), is a saint of the Catholic and Orthodox Christian churches.[1] His feast day is 3 February.
He was a Benedictine monk from Santa Maria di Portonuovo, a community at the foot of Monte Conero, south of Ancona on the Italian Adriatic coast.
It is thought that he came from Armenia, or that he originally was a Camaldolese monk from Dalmatia. Otherwise, basically nothing is known about him.
Another saint with the name Oliver is Oliver Plunkett, an Irish monk of the 17th century.