In 1754 that part of Amelia County divided "by a line to run from Ward's ford on Appomattox River to the mouth of Sail's creek on Nottoway river and all that part of the said county which lies on the upper side of the said line shall be one distinct county and called and known by the name of Prince Edward." The name was in honor of a younger brother of King George III, Prince Edward, Duke of Gloucester. This Prince was one of the two brothers of George III, whose marriages to commoners led to the passage of the famous Royal Marriage Act in 1772. Its well-known provisions are that no descendant of King George III may marry when under 25 years of age without consent of the reigning monarch or, if over that age, without a consenting Act of Parliament. Prince Edward Street in Fredericksburg is also named for this Prince as the city itself is for his father. Also in 1754, a second county was created from Lunenburg and called Bedford. It comprised the area lying on the upper side of Falling-river from its mouth "up the said river to the fork, thence up that fork running by John Beard's to the head, thence by a line to be run from the head thereof north, twenty degrees east to the line dividing the said county from the county of Albemarle." It should be remembered that at this time both the present Buckingham and Appomattox were a part of Albemarle County. The new county honored "John Russell the fourth Duke of Bedford who was Secretary of State of Great Britain February 13th 1748 to June 26th 1757." The parish, coterminous with the county and created at the same time, also honored the Duke, being called Russell. Another expansion at this time also on the south side of James River was the formation of Sussex from Surry County. Sussex lies to the south of Seacock Swamp on the line dividing Surry "from the county of Southampton, thence a straight course to Blackwater at the mouth of Coppohawk and up Blackwater to the line dividing" Surry from the county of Prince George. Sussex took its name from the English shire. Albemarle Parish formed in 1739 had included the area now made into Sussex, and, in addition, a small portion of Surry. It was enacted that the portion in Surry be added to Southwark Parish, and Albemarle Parish be made coterminous with Sussex.