It was founded in the early 12th century, shortly after the foundation of Garsten Abbey, by the local nobleman, Arnhalm I of Glunich,[1] who gave his castle for conversion to a monastery.
The family of the original founder, after running short of money, were obliged to pass the position of Vogt (lord protector) to Leopold the Strong, Margrave of Styria, who also issued the foundation charter in 1125 and endowed the abbey with property, notably around the present Gleinkersee.
[3] The abbey suffered fire damage in 1220, 1275 and 1313, but narrowly escaped destruction at the hands of the invading Hungarians in the late 15th century and the marauding Turks in 1532, although they caused devastation in the surrounding area.
In 1561, Emperor Ferdinand wrote, in discussing the ecclesiastical situation in the archduchy of Upper and Lower Austria, "...the conventuals at Gleink were all married and lived in drunkenness and gluttony.
From the later 17th century however more favourable circumstances allowed the development and refurbishment of the premises in the Baroque style, principally associated at Gleink with Abbot Rupert II Freysauf von Neudegg (1709–1735).
However, in the relative prosperity of the period from the mid-17th century onwards, the library grew, acquiring among other things the manuscript of the Gleinker Weltchronik (see below).
Since the dissolution the parochial duties had been carried out by parish priests, but from 1950 were undertaken by the Missionary Order of the Heart of Jesus, who settled and run a boys' home here ever since.