The All Saints church in Đakovo was built in the second half of the 16th century as the Mehmed-beg mosque. The mosque is commonly known as Ibrahim-pasha's mosque who was Mehmed's son and heir. The mosque belongs to a common type of domed mosques built by the Ottoman empire, consisting of a single domed square space with a portico consisting of four columns supporting three small domes. After over 150 years of Ottoman rule, Slavonia was liberated and the mosque survived because it was turned into a Christian church. Other remnants of the Ottoman period were mostly lost, but for a few examples, so the Đakovo mosque is the only remaining mosque in Slavonia, and one of three in the entire Croatia. The church has five distinct historical layers. After the mosque phase, there was a baroque phase, a baroque-classicism phase, a classicism phase, and a historicism phase. In 1988, detailed research was conducted on the history of construction and in 1989 conservation efforts were carried out in order to present its construction history. They were based on a combination of two approaches, preservation of the original narthex and interpolation, as well as the uncovering of the dome. After that, only smaller interventions were carried out in 2001 and 2021 to maintain the church's condition.