The theory the troubadour custom was made by William immediately after his knowledge of Moorish arts while preventing Using the Reconquista in Spain has become championed by Ramón Maleséndez Pidal and Idries Shah. George T. Beech states that there is just one documented battle that William fought in Spain, https://griffinfscny.bloggazza.com/30281853/the-basic-principles-of-music-oud