Kilian's Church on Kaiserstraße (Kaiser Street) in Heilbronn is a Gothic hall church constructed from Heilbronner sandstone, whose origin dates back to the 11th century. Its western tower, constructed by Hans Schweiner, is one of the first major Renaissance buildings to be built north of the Alps. Inside the church there is an altar by Hans Seyffer from 1498, which is regarded as a masterpiece of sculpture from the Late German Gothic period. Some of the stained glass is by Charles Crodel. The Monument Foundation of Baden-Württemberg appointed the church as monument of the month in December 2016. History Construction The first church in Heilbronn was the St. Michael's Basilica, mentioned in the founding documents of the Roman Catholic Diocese of Würzburg in the year 741, and mentioned for a second time in another official document in 899. It is very likely that this church was in the same place where the St. Kilian's church stands today, but this thesis lacks definitive proof. Excavations in 1880 found that there was a small romanesque church, sized 10x11m in the same place around the year 1100. Instead of this small romanesque church, there was a considerably more sizeable early gothic church in 1280. Its year of construction is unknown. The church was sanctified to Saint Kilian in the 13th century, a letter of indulgence from the year 1297 is the first source to mention the new name. After planning had started in 1508, the construction of the new western tower by Hans Schweiner was heavily influenced by the reformation and was finally completed in the year 1529. It is supposedly "one of the most original pieces of work from the Early Renaissance in Germany" as well as the first major Renaissance building north of the alps. Destruction in 1944 When World War II broke out, most of the art treasures, such as the altar or the stained glass in the church were moved to the tunnels of the salt mine in Kochendorf. On September 10, 1944, American incendiary bombs damaged the roof. The British attack on December 4, 1944, destroyed almost the entire church. In April 1945, American artillery damaged the church even further. Reconstruction from 1946 to 1974 The reconstruction was divided into several phases. After the rubble was cleared away in 1946 and 1947, the reconstruction began in 1948 under the supervision of the renowned architect Professor Hannes Meyer. Most