This document summarizes political assassinations that occurred in Spain between 1870 and 1973. It provides details on 5 major historical figures that were murdered: Juan Prim in 1870, Antonio Cánovas in 1897, José Canalejas in 1912, Eduardo Dato in 1921, and Luis Carrero Blanco in 1973. For each person, it gives background on their political role and a brief description of how and when they were assassinated.