Even though some areas of the oud-enjoying entire world, which include Iran, experienced fretted ouds all of the way from the 10th to 17th centuries, they were always inside a minority. Alfonso X, “The Clever”, 1221-1284, was King of Castile and other areas in modern day Spain and Portugal, https://drill34566.bloggactivo.com/34185457/helping-the-others-realize-the-advantages-of-music-oud