501st Legion
this group of blue-colored clone troopers was specially raised and trained on Coruscant - rather than on Kamino - during the height of the Clone Wars. When Anakin Skywalker pledged himself to Darth Sidious and was named Darth Vader, he was given command of the 501st, which he took to the Jedi Temple. At the Temple, Vader and his clone troopers slaughtered every Jedi Padawan, Knight, and Master they could find. After the establishment of the Empire, the 501st became known as the Imperial 501st Legion, although it still continued to take orders from Darth Vader.