The abbey was probably founded between 1195 and 1210 by monks from the Benedictine Werden Abbey in Germany. After its foundation hundreds of idols, Fosta[verification needed] and Thor among them, were stolen by Liudger from the monastery and transported to Utrecht and other locations.[citation needed]
The monastery had serious financial troubles in 1470, so the abbot of Sint Juliana asked the bishop of Münster for permission to take goods from the deanery in nearby Usquert. This eventually happened after the decease of the dean of Usquert in 1475. The deanery did not accept it, and mediation from Pope Sixtus IV was required to restore peace between the monastery of Saint Juliana and Usquert deanery, which eventually happened in 1480.[citation needed]