Francisco Elías Riquelme
Francisco Elías Riquelme (26 June 1890, in Huelva – 8 June 1977, in Barcelona) was a Spanish film producer and film director. He released the first sound film of Spanish cinema, El misterio de la Puerta del Sol, or The Mystery of Puerta del Sol (1928), which cost 18,000 pesetas at the time.