Wow, it seems like they didn't care too much about their jewels in those days. I checked it out and you are right that Charles I. did loose lots of jewels on a ship that was carelessly loaded.
I meant another English king however, who also lost his jewels. As your answer was also right, I'll leave it to you to decide wether you want to come up with the next question already, or if you want to find out about the king I mean first.