[quote:4b73dd48bd="peapod_j"]I just finshed reding Night Watch and at the end Vimes cant be promoted any more becse if he was he would out rank Vetinari (Vimes would be a prince). but does Carrot kown that is is the rightfull heir to the throne of Ankh-Morpork? and would he want to be Kink of Ankh-Morpork?[/quote:4b73dd48bd]

I think you meant "King" rather than "Kink" - though with someone whose girlfriend sleeps one week out of four in a dogbasket, who knows?

Yes, he clearly does know, but does not want the position (to the extent of destroying, or at least hiding, any supporting evidence) but has intimated that he might step forward to take the position in a real emergency. He also appears to be the moving force behind some of the promotions that Vimes has received.