• The church was built between 1065-1091 with an east tower made of stonemasonry
• 1313: construction of northern retaining wall on the side of the Grundlseertraun
• 1405-1506: large-scale conversion and big extension building
• 1429: construction of the big south-west tower with a clock
• 1445: endowment of the great bell “Kunigunde” by Emperor Friedrich III
• In the 16^th century, the entire exterior facade was covered mostly with Protestant frescoes.
• 1984: new Rieger organ with 25 registers
• 1991: five new bells
• 1992: renovation of the tower
• 1998: exterior renovation including a new tower roof
• In 1301 the church was documented for the first time as vicariate of Traunkirchen. The Ausseerland was christianized from Passau.

Art-historical sights:

• Sacrament house from 1523 mad of Adnet marble,
• “Beautiful Madonna” from 1410 in the Marienkapelle,
• late ghotic crucifixion group over the entrance of today`s sacristai,
• Latebaroque Floriani-altar with picture of Aussee about 1800,
• Fortschegger-pulpit from 1782.