 Ramón Menéndez Pidal argued that this text originally read "imperante Castelle" ("ruling Castile") and was mangled at the time of the confirmation.Alfonso García Gallo rejected this on the grounds that an "imperante" phrase with a different structure is used in the dating clause of the "fuero" and that two different structures would have been employed for the same terminology.In 987, in a charter of donation to the church of Santillana del Mar, García Fernández again styled himself emperor