St. Leonard's Church in Łowicz is an object with a rich history dating back to its first mention in 1520, when it served as a temple for rural vicars. The current building was erected in 1626, but soon after, around 1635, it burned down. Rebuilt in 1642, it gained new architectural elements, including a wooden nave, which was added and consecrated in 1712 in honor of St. Leonard and Margaret. In 1915, the church suffered significant ruin, and after World War I, in 1918, it underwent a restoration process. Unfortunately, during the Battle of the Bzura in 1939, it was again seriously damaged, leading to the complete destruction of the nave. To protect the remains of the structure from demolition, they were covered with roofs, which halted the degradation process. Only the former presbytery of the wooden temple has survived, serving as a valuable trace of the past. The church held great cultural and religious significance for the local community, and its history illustrates the changing fortunes of the region over the centuries. It is worth adding that over the years, it also served as a center of academic life in Łowicz. This place, with its rich history and architecture, remains an important element of the city's cultural heritage.