 This manuscript is thought to date from the late tenth century and may not reflect contemporary usage.Likewise, it appears to derive from an Iberian Arabic original, and the imperial title may be an imprecise representation of some Arabic title such as Caliph.The "Genealogies" also refer to Sancho Garcés's daughter as "Sancha, wife of Emperor Ordoño of León", referring to Ordoño II, whose third and final wife she was.