St. Quirin, Former monastery and Catholic parish church in Tegernsee, Germany.

St. Quirin is the former Benedictine abbey church at the centre of the Tegernsee monastery complex, used as the village's Catholic parish church since the monastery was dissolved in 1803. Its core is a three-aisled basilica without transept, completed around 1476, with a western double-tower facade. Enrico Zuccalli's baroque remodelling from 1678 added a crossing and transept, and Hans Georg Asam created the ceiling stucco and painted programme by about 1694.

According to legend, the monastery was founded around 746 or 765 by the brothers Oatkar and Adalbert of the Huosi family, who brought the relics of Saint Quirinus as a gift from Pope Zacharias. After 978, when Emperor Otto II helped re-establish it as a Benedictine imperial abbey, the church was rebuilt; parts of the crypt and the lower west facade may date from this period. A fire in 1410 led to a late Gothic reconstruction, completed around 1476.

The church keeps the name of Saint Quirinus, whose relics the founding monks brought from Rome. The high grave of the founders Adalbert and Otkar, carved in 1457 by Hans Haldner, was dismantled during the Baroque work; its slab, dated 1690, now crowns the entrance portal. The Rococo chapels honour Quirinus and Benedict.

The site is centrally located in Tegernsee at Schloßplatz 2 and is easily reached on foot. Keep in mind that services and ceremonies take place here, so the best time to explore is when no worship is scheduled.

The high grave of the monastery founders Adalbert and Otkar, carved in 1457 by Munich sculptor Hans Haldner, was dismantled during the Baroque rebuilding; its cover slab, reframed and dated 1690, now crowns the entrance portal. The ducal crypt beneath the chancel, begun in 1895 by Duke Carl Theodor, holds 19 burials, among them Napoleon's marshal Louis-Alexandre Berthier, and is not open to the public.