Here's Julio Iglesias 1970 Eurovision entry Gwendolyne in two versions. First is a sensational version by Spanish Flamenco Legend Lola Flores (also see video below). She recorded the song in 1970 but I only know of a Various artists MC release Exitos Modernos En Flamenco. I don't know if it was released on LP or single. see comments
The second version is by Rosario Flores who is the daughter of Lola and Antonio Gonzalez Flores. She recorded Gwendolyne for the soundtrack of Spanish TV series Cuéntame Cómo Pasó (11th season, 2009).
Below is a fab clip of mama Lola doing Gwendolyne with papa Antonio on guitar.