The village lies in Konin County in the administrative district of Kazimierz Biskupi, about 15 km northwest of Konin.

When King Bolesław Chrobry (Boleslaus the Brave) ruled Wielkopolska, five hermits from the Camaldolesian order were brought in to help promulgate Christianity. Their names were Barnaba, Jan, Mateusz, Izaak and Krystyn. They built their hermitages on the site of modern-day Kazimierz Biskupi and began leading saintly lives. They taught the locals and cut stones to build a new church in their spare time. One day, they received a fish from a villager. They shared the food among themselves and threw the fish head into a well. Another fish miraculously appeared in the well the next day. They made a meal of that too and another fish appeared from the leftover head. To the brothers, this was a clear sign that God was looking after them. One day, a royal procession drove up to the hermitage. The king was moved by the humble conditions in which the monks lived and donated valuable jewels for their work. Some courtiers in the procession, however, were jealous that the friars were being granted such riches. They returned to the hermitage that night to kill the brothers. Only Barnaba survived the onslaught. His brothers’ murderers were converted through his mediation and became Camaldolesians just like the first martyrs.
The well, whose water is said to have miraculous healing qualities, is still there and the memory of the Five Martyred Brothers is kept alive in Bieniszew and Kazimierz Biskupi.