[1] She married Charles Lyon, 6th Earl of Strathmore and Kinghorne, but he was killed in an unfortunate brawl at Forfar by Carnegie of Finhavon in May 1728, leaving no heir.
Later the Countess married her servant and was shunned by her family until she died in Paris leaving a daughter who was left penniless by her rich relatives.
[3] Susanna, the loveliest of the "three Graces" - "Scotland's fairest daughter", to quote a chronicler of the time, had high-placed lovers by the score almost before she had graduated into long frocks.
Charles Lyon, 6th Earl of Strathmore and Kinghorne, was accounted the "luckiest man north of the Tweed"[1] when he won her for his bride.
Miss Ann Stuart, writing in August 1725, describes the marriage-dress of the beautiful Lady Susan Cochrane, thus :— "Lest you have not got a particular account of my Lord Strathmore's marriage, I will give you the best I can.
She made no appearance after her marriage, except seeing the archers, for their coach was not come down from London, and they staid but a few days in town ..."For a few years the young Earl and his Countess were ideally happy.
After the funeral the three men sat drinking together, as was the custom of the time, and then adjourned to a tavern in Forfar, where they continued until all three were in an advanced state of intoxication.
Mr Lyon began to conduct himself more outrageously than before, now that the modified restraint of a lady's presence was removed.
One day it is said:[1] the Countess summoned the groom to her presence, and, to his amazement and embarrassment, told him that she had long grown to love him, and that she asked nothing better of life than to become his wife.
The Countess was disowned by her noble relatives; her friends gave her the cold shoulder; and, unable to bear any longer the constant slights and her complete isolation, she went to the Continent.
Then in 1761 a "rough seafaring man" called at the convent with a letter from her father demanding the return of his daughter to Leith.
The girl (Susan Janet Emilia) went to the father she had never seen who now lived with a new wife and family and was a livery-stable keeper at Leith.
The Earls of Galloway and Dunmore, the Duke of Hamilton, and Mrs Stewart Mackenzie combined to provide her with an annuity of £100.