The Barony of Mourncreek was a Manticoran peerage. In the early 20th Century PD, the title of Baroness Mourncreek was held by Lady Francine Maurier, who served as First Lord of the Admiralty of the Royal Manticoran Navy during the last ten years of the Cromarty government. (HH3) In 1919 PD, Queen Elizabeth III elevated it to the Earldom of Mourncreek. (Companion)