What city is XXX associated with?
Mateu Morral
Mateu Morral Roca (Mateo in Spanish; 1880, Sabadell -- 2 June 1906, Torrejón de Ardoz -- part of Madrid) was a Spanish anarchist, known for murdering fifteen people in a terrorist bombing in an attempt to assassinate King Alfonso XIII of Spain and his bride Victoria Eugenia (on 31 May 1906, the day the two were married).
Sabadell