The village was founded in 1367 by the Grand Master of the Teutonic Order Winrich von Kniprode. The Gothic-style brick and a stone parish church was built under the patronage of the Truchsses von Wetzhaussen family in the years 1375–1400. The village of Gudniki and Sarkajmy belonged to the parish. Since the Reformation until the end of World War II, the church was managed by Evangelicals. The church tower was built at the turn of the 15th and 16th centuries. On January the 17th 1818 there was a hurricane passing over the East Prussia. Only within few hours it made significant havoc in the buildings. The same year the church tower was rebuilt from the second floor. The temple was renovated in 1911.
In the rooms under the tower there are four marble tombstones, embedded in a Renaissance wall with life-size figures of deceased members of the old Truchsses von Wetzhaussen family, whom the village belonged to the 16th century. From the 1950s, a Catholic priest began to appear in Łankiejmy, and in 1962 the parish was founded.
There is a part of the protestant furnishings that still remained, including the unusual decoration crowning the choir in Lankiejmy, depicting twelve the so-called minor prophets from the Old Testament. Inside, there is also an old 17th-century altar and pulpit, as well as a crucifix from 1515.