Julita Abbey was a monastery for Cistercian monks in the parish of Julita in Oppunda Hundred, Södermanland, Sweden. The monastery was originally founded in 1160 at Viby, close to Sigtuna, but under the patronage of King Knut Eriksson, who donated land and a right to parts of the fishing at Älvkarleby, it was moved in 1180 to Säby by the lake Öljaren in Julita. The monastery was therefore also known as Säby, or Saba in Latin. It continued to receive rich donations from King Erik Knutsson (1210-1216), and later from other members of the aristocracy and royal circles. It was finally the owner of some 80 farms, mostly in Södermanland. At the time of the Protestant Reformation, King Gustavus Vasa appropriated the abbey and gave it in fief to Olof Arvidsson, a bailiff in Nyköping, in 1527. The s