Return Of Ringo (1965)

aka's: Il Ritorno Di Ringo/El Retorno De Ringo/Blood At Sundown

Giuliano Gemma plays a Civil War soldier who returns home to find his family decimated. As if this wasn't enough, his property has been taken over by a family of Mexican bandits and his fiance is about to marry the Mexican gangster behind the takeover. He decides to go undercover disguised as a Mexican, and discovers he has a daughter. Also stars Fernando Sancho, Lorella De Luca and Nieves Navarro.