Enforced disappearances in Francoist Spain
According to the Platform of Victims of Forced Disappearances under Franco, more than 140,000 people disappeared during the Franco regime, including victims of the Spanish Civil War and the subsequent Franco dictatorship. The most recent academic studies estimated the number of victims of Francoist repression during the war at 130,199 and the number of victims of Republican repression at 49,272.
Source: Wikipedia — Enforced disappearances in Francoist Spain (CC BY-SA 4.0)