About ten kilometres southwest of Zagreb is Kerestinec and there was a castle dating back to the eighteenth century. After the war, the Yugoslav kingdom used the castle as a prison for political opponents. When the independent Croatian state headed Ustasha and its dictator Ante Pavelic was formed in april 1941 in the wake of the axe powers occupation of Yugoslavia was taken over the prison by Ustasha’s security police. The prison was divided into three parts, one serbian, one jewish and one communist. In July 1941, 89 prisoners from the communist section attempted to flee, 14 succeeded, 31 were shot during the flight and 44 were shot after being captured. Shortly after the escape attempt, the prison was dismantled and remaining prisoners were sent to other camps/prisons. During the short life of the camp, about 900 prisoners still passed through the prison, the majority of whom were Jews from Zagreb.

Current status: Preserved with monument (2023).

Location: 45°46' 27.94" N 15°49' 02.05" E

Get there: Car.

My comment:

The prison is not accessible to visitors and appears to be in disrepair, but at my visit in 2023, it seemed at least some kind of construction work was going on, but exactly what could not be seen. The memorial outside along the way consists of the names of those murdered in prison.

Follow up in books: Lituchy, Barry M: Jasenovac and the Holocaust in Yugoslavia (2006).