Complex sentence: The name is also recorded as Sihiminus, perhaps a misspelling of "Ximinus", may have been a local Basque whose family later fled south over the Pyrenees and helped Enneco Arista take over in Pamplona.
Split into simpler sentences: The name is also recorded as Sihiminus, perhaps a rendering of "Ximinus". He may have been a local Basque whose family later fled south over the Pyrenees and helped Enneco Arista take over in Pamplona.