National-scale cultural monument protected since December 19, 1998. Protection no. 2077

The ruins of the Swedish Church, built in the 17th century, are located in Allažmuiža near Ezerkalns. The church was built in the early 17th century. The window’s edges and corner crossings are built from boulders, as well as the cross sign made of Allaži travertine. There was a medieval cemetery around the church. The ruins of the church are a local architectural monument.

Allažmuiža (formerly Ausmas, Ezerkalns) is a village in Allaži parish of Sigulda district. Located on the shores of Tumšupe near the P3 motorway, 4.5 km from the center of Allaži, 16 km from the center of Sigulda, and 49 km from Riga. The settlement is located at the Allažu Manor center.

Formed in post-war years as a village of the collective farm "Ausma". Only the mill building (1801), the millpond, and the manor park have survived from the former Allažmuiža. The manor house was burnt down in 1905., the rest was destroyed during World War I, crossing the front line.