Actually, by tradition and law, a ship's captain is the supreme rule when at sea. Ambassadors, kings, presidents cannot supercede his orders and while they may try to demand or command the captain to do something, those demands or commands are traditionally suggestions at best.<br/><br/>The Captain does have the authority to command any and every soul on board if it involves the safety or survival of ship and crew/passengers. So, if a captain tells a prince to pick up a hammer and start swinging... he had better think seriously before committing mutany.<br/><br/>On a side note, Tari is a sailor, but as she signed on independently for this particular voyage, she's technically a mercenary who is working as part of the crew when required.<br/><br/>And I'm working with MU to come up with some background between them.