The Sixth Space Lord was a member of the Lords of the Admiralty who controlled the Royal Manticoran Navy.
The Sixth Space Lord was responsible for the Bureau of Training (BuTrain for short), which handled the training and education of naval personnel in accordance with the Third Lord of Admiralty.
In 1850 PD, the Sixth Space Lord was the Earl of Three Pines. (Companion)
In the 1910s PD, Lord Sir Frederick Ormskirk, Earl of Tanith Hill held the office. (HH11)