Count of Serenno A Count of Serenno was a title bestowed upon the heads of the Serenno Great Houses . More specifically , the liege lord of all the Counts was referred to as " the " Count , Duke or Regent of Serenno , with the head of each family bearing the title of " Count " and then the name of their house ; Count Dooku being the head of House Dooku being an example of this . The Counts of Serenno were properly addressed as " Your Grace " or " Your Highness . " The traditional outfit of the Counts of Serenno included an elegant dark cape that enlarged the wearer ' s silhouette to intimidating effect . History . Making up the leadership of the planet Serenno , the Counts were believed to been among the wealthiest and most influential beings in the galaxy . In the wake of the Ruusan Reformation s , the six most influential Counts welcomed Supreme Chancellor Tarsus Valorum to their world , although they did not take lightly to outsider influence in their world ' s affairs . During the Chancellor ' s arrival at House Nalju ' s retreat , a group of rebels attacked the Chancellor in an attempted assassination . Thwarted by Jedi Knight Johun Othone , the radicals were purged by the Counts as an attack on their guest was considered an attack on the Counts themselves . Following the death of the Jedi Master Dooku ' s brother , Adan Dooku was next in line , but was too young to take the title of Count , so his mother Kostanza became Regent . During the Republic ' s Separatist Crisis , Adan Dooku and his mother were then ousted by his uncle , former Jedi Master Dooku and went into self - exile . Indeed , Dooku had fallen to the dark side of the Force and abandoned the Jedi Order and took up leadership of the Confederacy of Independent Systems . Leading the Confederacy in to open conflict in what would be known as the Clone Wars , Dooku ' s reign of terror would bring the iron fist of the Galactic Empire down on Serenno at the end of the war . Adan Dooku then returned and took the title of Count of House Dooku and Regent of Serenno . Led by Darth Vader , the Cleansing of Serenno saw the execution of the other Counts ' and their replacement by more compliant Imperial sympathizers . In 3 BBY , Count Adan Dooku was assassinated by Imperial Agent Jahan Cross disguised as Boba Fett . His son and the new count , Bron , was too young to be Regent . The leaders of the fiver other Great Houses then met at Serenno ' s Great Assembly House to elect a new regent . They then met again aboard the Count Bron Dooku ' s airship , the " Windrunner " , to continue electing a new regent . The four other Counts refused to elect the Empire ' s first choice , Lord Rodas Borgin of House Borgin , and preferred Lord Orom Malvern as the new regent . Following the kidnapping of the new Count Dooku , at the behest of Lord Borgin , the Empire then decided to send a fleet of Star Destroyers to take the young Count and dictate a new regent , who would be Borgin despite the risk of civil war . Following the apparent death of Count Bron Dooku , Orom Malvern was then named the Count of Serenno with support of both the Great Houses , the new Count Pero Borgin and Imperial Fleet . The Young Count Dooku was left in the care of Ambassador Davim Cross to await his return to reclaim his birthright .