The Seton’s of Abercorn derive their branch designation from the Barony of Abercorn in Linlithgowshire which they formerly possessed.  The line of the Seton’s of Abercorn was established by the second son of James Seton of Touch from his second wife, Eline-Jane Edmonstone, daughter of Edmonstone of that Ilk and Ednam, County Roxburgh, who were descended from the early Seton’s.  The Manor of Abercorn once belonged to the House of Avenel in the reign of King David I (1124-1153), and the Barony of Abercorn like that of nearby Gargunnock was sometime in the interest of Sir Ninian Seton, 3^rd baron of Touch and his grandson, James Seton, 5^th baron of Touch, and was later acquired by Royal Charter by James’ gr-grandson, Sir Walter Seton, 1^st Baronet of Abercorn. Sir Alexander Seton of Gargunnock acquired the estate of Gargunnock near the family estate of Touch, both in Stirlingshire.  He later acquired the barony and estate of Culcreuch in addition to that of Gargunnock, in 1624, in settlement of monies owed him by his brother-in-law, Robert Galbraith, 17th Chief of that Clan who was forced to flee to Ireland, bankrupt, to escape his debts. Later the same year, Sir Alexander, noted for being “a man of parts and learning”, was appointed a judge and admitted an ordinary Lord of Session, on the 4^th of February, 1626, and took the title Lord Kilcreuch. Soon his successful career necessitated the selling of Culcreuch to be nearer Edinburgh and in 1632, 8 years after purchasing it, he sold Culcreuch to Robert Napier.  Sir Alexander was twice married: first on the 30^th of August, 1598, to Marion Maule of Glaster by whom he had a son and heir called Alexander, and second; to the daughter of the 16^th Chief of Galbraith.  Sir Alexander had several children and kept an exceptional house, noted for it’s order and high standard of education.  As a man of unscrupulous honesty in a very unscrupulous age, as well as for his unswerving loyalty and service to the Crown, Alexander was Knighted by King Charles I at Holyrood on the 12 of July, 1633.  And finally, on account of his infirmity of sight and many years of service, he resigned his seat on the Bench, with it’s honor and emoluments, on the 6^th of June, 1637.