 He then defeated García, achieving a sort of hegemony over his brothers, but again divided his realm among his sons.One of these, Alfonso VI, not only succeeded to the reunited realm of his father, but also conquered Toledo, reclaimed the imperial title and even pretended to rule over both Christian and Moslem Spain.The Navarre branch of the dynasty went into eclipse when in 1076 Sancho IV was assassinated by his siblings, and his cousins Alfonso VI of Castile and Sancho Ramírez of Aragon converged and divided the kingdom, with the Aragon ruler gaining the Navarre crown, while ceding western lands to Castile.