Wait a minute. He can just lie, can't he? It's not like he has to give his real name. Title. Thing. He could say he's the Lord of the Griffons and his current problem won't know it's not true.

"Fine. I'm-" He should have though of something before he opened his mouth. This why he's a terrible liar. He doesn't think, he just talks.

...What name should he give? Actually, that's blindingly obvious now that he thinks about it. If he wants to make Ser Obnoxious shut his mouth- No, if he wants to give a name Ser Obnoxious can't make fun of. He's sure that there's not a single name he could give that would actually shut the man up so the best he can do is avoid the obvious source of mockery.

"I'm the Prince of Ferelden, happy?" And it's not technically a lie even. So there.