I was advised to take this to G2G. I think Fernando Munõz's profile should be removed. Truth is, it's known that Gonzalo Fernandez was grandson of Munio Nunez and Argilo but it's uncertain whether it was paternal or maternal. Considering that no Fernando Munõz is found in any document, the latter seems more likely. In addition, there was an earlier tradition that Gonzalo Fernandez's father was Fernando Gonzalez, who, actually, is found in documents.