The Earldom of Acton was one of the original peerages of the Star Kingdom of Manticore. In the early 16th Century PD, the ruling Countess Acton was the head of one of Manticore's two single-ship freight companies, the other being owned by Samuel Tilliotson. (MA1) Heinrich Hauptman served as managing director of her company in 1539 PD. (MA2)