Text: After Byzantium fell to the Crusaders, Crete was given to their leader, Boniface of Montferrat, who immediately sold it to Venice for 1,000 silver marks, ushering in a new era.
Entailment: Venice bought Crete for 1,000 silver marks from Boniface of Montferrat.
Contradiction: Crete maintained its independence during this tranquil time.