On 31 May 1188 Leopold V of Austria presented the abbey with a relic of the True Cross, which is still to be seen and since 1983 is exhibited in the chapel of the Holy Cross. This relic was a present from Baldwin IV of Jerusalem, King of Jerusalem to duke Leopold V in 1182. Heiligenkreuz was richly endowed by the founder's family, the dukes of Babenberg, and was active in the foundation of many daughter-houses. The following Cistercian monasteries received their first monks from Heiligenkreuz: Heiligenkreuz was spared dissolution under Emperor Joseph II.