When Reccared ascended the throne, Leander was allowed to return to Seville.
Worked against Arianism.
Presided over the Third Council of Toledo in 589.
His boundless energy and steady faith led the Visigoths back to orthodox belief.
Wrote an influential Rule for nuns.
Intoduced the Nicene Creed to Mass in the west.
Honored as a Doctor of the Faith by the Church in Spain.