Stucco: if not indicated otherwise, by the Seitenstetten mason Stafan Ober in 1677.
Ceiling frescos: by Joh. Ritsch from Säusenstein in 1702, which was exposed during the last complete restoration of the monastery, and has been partly restored by the professional painter Gustav Krämer.
Altars and pulpit: if not indicated otherwise, the construction of the altars was carried out by the carpenter Maximillian Peckh from Seitenstetten, and the figures were carved by Franz Josef Feuchtmaier from Linz and Br. Marian Rittinger from Garsten.
The Stations of the Cross: by Adolf Stnnzl in 1860.
Organ: by the company Reinisch-Pirchner of Steinach, North Tyrol, in l989.
Final interior restoration: in 1974-83. The interior was thoroughly cleaned again in 1997.
The sacristy: is Of Baroque design, and was renovated and adapted for special presentation in l993-94.

Source: http://www.stift-seitenstetten.at/ (German)