has several branches. The name "Kerr," from the Old Norse "kjrr" meaning "marsh-dweller," arrived in Scotland from Normandy. In Scotland it was rendered Kerr, Ker, Carr and Carre, with a Scottish variant on the west coast taken from the Gaelic "ciar," meaning dusky. According to the lore of the family of Mark Kerr, 1st Earl of Lothian, the name comes from the Norman chiefs, Ralph and Robert, both brothers who came to Roxburgh from Lancashire in the 1300s. The Kerrs of Ferniehurst claim descent from Ralph, and the Kerrs of Cessford claimed they are descended from Robert. These two man branches of Clan Kerr were often at odds with one another, fighting until they came together in the early 1500s. The Kerrs subsequently also warred with the Scott Clan, until the feud ended when Sir Thomas Kerr of Ferniehurst married Janet Scott. In a 1591 charter, Mark Kerr had his lands at Newbattle and Prestongrange erected into the barony of Newbattle.
1st title
was created Lord Newbattle in 1591 and Earl of Lothian in 1606, both with remainder to his heirs male. The title went to the eldest of his four sons, Robert Kerr, 2nd Earl of Lothian. In 1621 both titles were surrendered by the 2nd Earl and regranted with a special remainder to his daughters, the eldest of whom, Lady Anne Kerr, succeeded to both titles on his death in 1624. Her husband, Sir William Kerr was created Lord Kerr of Newbattle and Earl of Lothian in 1631. On her death in 1667 their eldest son became 4th Earl of Lothian and on her husband's death in 1675 also 2nd Earl of Lothian.
2nd title as Marquess
By this point Sir Robert Kerr, father of the 1st Earl of the 2nd creation, had been created Lord Kerr of Nisbet, Langnewtoun and Dolphinstoun and Earl of Ancram, and the titles had been inherited by the 4th and 2nd Earl of Lothian's uncle, Charles Kerr, on whose death in 1690 he became 3rd Earl of Ancram. He was then created Lord Ker of Newbattle, Oxnam, Jedburgh, Dolphinstoun and Nisbet, Viscount of Briene, Earl of Ancram and Marquess of Lothian in 1701. The 2nd Marquess succeeded his cousin as Lord Jedburgh before succeeding to the Marquessate, and the 6th Marquess was created Baron Ker, of Kersheugh in the County of Roxburgh, in 1821, in the Peerage of the United Kingdom.
Earls of Lothian; First creation (1606)
Mark Kerr, 1st Earl of Lothian
Robert Kerr, 2nd Earl of Lothian
Anne Kerr, 3rd Countess of Lothian
Robert Kerr, 4th and 2nd Earl of Lothian and 3rd Earl of Ancram
Earls of Lothian; Second creation (1631)
William Kerr, 1st Earl of Lothian
The Earldom was inherited by the 4th Earl of the first creation.
Lords Jedburgh (1621/2)
Andrew Ker, 1st Lord Jedburgh
Alexander Kirkaldy later Ker, de jure 2nd Lord Jedburgh
John Ker, de jure 3rd Lord Jedburgh
Robert Ker, 4th Lord Jedburgh
William Ker, 5th Lord Jedburgh ; later 2nd Marquess of Lothian
Earls of Ancram (1633)
Robert Kerr, 1st Earl of Ancram
Charles Kerr, 2nd Earl of Ancram
The Earldom was inherited by the 4th and 2nd Earl of Lothian.
Michael Andrew Foster Jude Kerr, 13th Marquess of Lothian
The heir presumptive is the present holder's brother Lord Ralph William Francis Joseph Kerr. The heir presumptive's heir apparent is his son John Walter Donald Peter Kerr.