Young Hercules S01 E35 My Fair Lilith

When a king offers his daughter's hand in marriage as a gift to Jason for his coronation, he pleads with Lilith to masquerade as his bride rather than marry someone he doesn't know or love. The problem is that the princess's jealous boyfriend shows up and is out to get Jason, and it's up to Hercules to straighten out the whole mess while keeping the king from finding out and keeping Jason alive.