Arta Dracula is the older brother of Count Dracula and Ivan Dracula. Not much is known about him since his existence was only revealed during the last half of Young Dracula Series 4 episode 4 'The Crown of Ludlaw Erant'.
He was married to Elisabetta, who later married the Count as it was tradition.
He is the older brother of the Count. It appeared that the Count was hiding what he knows about him. It's later revealed that the Count and Arta had a fight on Arta's ascension night and fell onto a wooden fence.