c. 923), also spelled Guntisclo, Gutísculo, Gutisclo or Gutislo, was an illegitimate son of Galindo Aznárez II, the last independent count of Aragon.
[2] Guntislo is known from only two sources: the genealogies found in the late 10th-century Codex of Roda from the Kingdom of Pamplona and a single document from the cartulary of the monastery of San Juan de la Peña.
[1] The genealogy is not entirely consistent, in that the patronymic of Oria's brother, Jimeno Galíndez, indicates that his (and by implication her) father's name was Galindo and not Quintila.
The document specifies that, at some point prior, the pardina was confirmed as an allod of San Juan de la Peña by two counts named Guntislo and Galindo.
[6] If the two sources are referring to the same person, this suggests that Guntislo was count of Aragon for a time, probably after his father's death and before the county passed to García Sánchez of Pamplona.