Las hijas del Zorro (1964)

Name: Las hijas del Zorro
Released: 1964-04-10
Duration: 87 min
Cast: Kitty de Hoyos, Dacia González, Eduardo Fajardo, Eric del Castillo, Pancho Córdova

Two sisters. They ride horses, they wear black dominos, they carry bullwhips. Their dad was... Third of three movies in unofficial series; the first two didn't explicitly reference Zorro.