Dooku’s full name is Count Dooku, also known as Darth Tyranus. However, to fully understand the character and his name, we must delve deeper into his history and the lore of the Star Wars universe.

Count Dooku was born into a noble family on the planet Serenno. His full name was actually “Dooku of Serenno,” which indicated his royal lineage and elevated status within his society. As a young man, Dooku was trained in the ways of the Jedi Order and eventually rose to the rank of Jedi Master.
However, Dooku became disillusioned with the Jedi Order and the Republic that they served. He felt that they had become corrupt and had lost their way, and he began to believe that a stronger and more centralized government was necessary to maintain order in the galaxy.
Dooku’s disillusionment led him to join the Sith, a dark organization that sought to overthrow the Jedi and establish their own rule over the galaxy. Dooku was taken under the wing of Darth Sidious, the true identity of the Sith Lord known as Emperor Palpatine.
Under Sidious’s tutelage, Dooku embraced his new identity as a Sith Lord and adopted the name Darth Tyranus. This name reflected his desire to rule with an iron fist and bring order to the galaxy by any means necessary. As Darth Tyranus, Dooku became a key player in the Clone Wars, a massive conflict that pitted the Republic against the Separatists, a group of systems that had seceded from the Republic.
Throughout the Clone Wars, Dooku served as a leader and strategist for the Separatist cause. He was instrumental in creating the droid army that the Separatists used to wage war against the Republic, and he personally led many battles against the Jedi and the Republic’s forces.
Despite his initial success, Dooku eventually met his downfall at the hands of Anakin Skywalker, a young Jedi Knight who had been seduced to the dark side of the Force by Darth Sidious. In a fierce lightsaber battle, Anakin defeated Dooku and cut off his head.
In conclusion, Dooku’s full name was “Dooku of Serenno,” but he was better known as Count Dooku or Darth Tyranus. His story is one of disillusionment, betrayal, and a desire for power that ultimately led to his downfall. Despite his tragic end, Dooku remains a complex and fascinating character in the Star Wars universe, and his legacy continues to influence the events that unfold in the series.