 By June Peter had begun the siege of Zaragoza itself.For the siege he had a fortress built named Juslibol (a corruption of the Latin slogan "Deus lo volt" [God wills it] used by the First Crusaders) and ringed the city with banners bearing the cross.In August he was conducting a "razzia" (raid) as far south as Alpenes and the river Ebro, but the campaign was eventually aborted due to insufficient cavalry.