Altstadtkirche St. Martin, Medieval church in Pforzheim, Germany

St. Martin Old Town Church is a church building in Pforzheim built on Roman foundations, combining Romanesque and Gothic architectural styles throughout its structure. The interior features stone vaults, columns, and tall windows that display the layering of styles added over many centuries.

The building started as a wooden church in the 7th century, was replaced by a Romanesque stone basilica in the 12th century, and received Gothic changes around 1350. These transformations show how architecture and religious needs evolved over long periods.

The parish lies in Pforzheim's multicultural eastern district near the municipal hospital. Services of the Serbian Orthodox Church are also held here, alongside worship in easy language and a Café Himmelreich. The five bells were cast by Bachert: bell 3 in 1921, the others in 1954.

The church stands in Pforzheim's Oststadt district, next to the Städtisches Klinikum, and the parish also hosts Serbian Orthodox services, services in easy language and a Café Himmelreich. Visitors should check the current opening times before coming, since access is not continuous.

The Romanesque tympanum kept in the tower vestibule is one of Germany's earliest figured door lintels: a man's bust with a long moustache, a lion, a cockerel and a small chained lion, once set above the west portal around 1100. The five bells were cast by Bachert, bell 3 in 1921 and the rest in 1954.