Unfortunately, there is no mention of the construction of the church in Radostowo, whether it was built before the Union of Brest is also unknown. But since the time of the Union in 1569 there are already references to the church in Radostowo as a Uniate church. Taranowicz Piotr, Administrator of the church in the town of Radostowo, Ratna district. KP 22.01.1771. [5, sheet. 182 adv., 188 adv]. Borkowski Alexander, 1756*.