Alexander Burnett was the second son of Catherine Ramsay, the granddaughter of Sir Charles Ramsay, 3rd Baronet of Balmain of the earlier creation (1625) in the Baronetage of Nova Scotia, which was inherited by her brother, Sir Alexander Ramsay-Irvine, 6th Baronet. Catherine Ramsay married Sir Thomas Burnett of Leys, 6th Baronet, and their eldest son, Robert, inherited the Burnett baronetcy, while their second son, Alexander Burnett, was his maternal uncle's namesake and heir. Sir Alexander Ramsay, 6th Baronet bequeathed his estates to his nephew and the baronetcy was revived in favour of Burnett a few months after Sir Alexander's death, who changed his surname to Ramsay by royal licence.[1][2]
The second Baronet sat as Member of Parliament for MP for Kincardineshire. The third Baronet was Member of Parliament for Rochdale. The seventh and present Baronet is the presumed heir to the dormant Burnett Baronetcy of Leys.[1]