What did leonato do to punish claudio for embarrassing hero?

Leonato publicly shamed Claudio for his role in the humiliation of Hero by pretending that she had died from the distress caused by his actions. He confronted Claudio at their wedding, accusing him of being a coward and dishonorable. Additionally, Leonato demanded that Claudio prove his love for Hero by agreeing to marry her cousin, which was part of his plan to restore Hero's honor and teach Claudio a lesson about the consequences of his actions.