Jaćmierz is a village in the Podkarpackie Voivodeship, located in the Sanok County. It formerly held town status, having been granted its charter before 1437. Historically, the village was owned by the Jacimierski family, and its development was enriched by regular fairs and markets. The area is characterized by fertile soils and a picturesque location in the Jasło-Sanok Depression. In the 19th century, Jaćmierz was an important trade center with a developed cattle breeding industry. During the interwar period, it became a cultural hub with active social life. The architecture is dominated by the Roman Catholic Church of the Assumption of the Blessed Virgin Mary, built in the mid-17th century and rebuilt after a fire in 1737. The church is distinguished by its two towers and a unique roof that imitates masonry structures. Next to it stands the Polish Catholic Church of the Sacred Heart of Jesus from 1925. Jaćmierz was associated with notable figures such as Leon Grotowski, a deputy to the State Council, and Father Bronisław Józef Kraus, a martyr of a Nazi prison. Interesting aspects include the operation of the Stefczyk Savings Bank, the functioning of the Manor Complex, and the village fairs that attracted merchants from all over Poland and abroad. With its rich history and diverse cultural heritage, Jaćmierz remains a place of regional significance, preserving its traditions and interesting architectural landmarks. An important recent event was the revitalization of the market square, which has contributed to the revitalization of the local community.