So influential was Oliba that , in 1023 , King Sancho III of Navarre consulted him on the propriety of marrying his sister Urraca to her second cousin , Alfonso V of León .
So influential was Oliba , that , in 1023 , King Sancho III of Navarre consulted him on the propriety of marrying his sister Urraca to her second cousin Alfonso V of León .