At the end of the 19th century, the village and 1752 manor house of Nemetboly became the property of the Prince of Montenuovo through marriage. His wife planned a family mausoleum combining several architectural designs with construction between 1879-1894. The yellow two-story structure has a red tile roof and red marble is used throughout the inside. The neo-Romanesque and neo-Gothic building is unique in Hungary. A wooden cross with a life-sized sculpture of Jesus Christ is part of the ornate building. A major renovation was done in 2005 . The village was renamed Boley in 1950 and was considered a town in 1997. The manor house is now a library and a museum. The Hungarian-German residents of the town are bilingual . The main hall of the mausoleum is used for the village's funeral services and the village's cemetery is located on the mausoleum grounds.