Career
Isabel was the sister of the famous James 2nd Earl of Douglas and Earl of March, who died leading the Scots to victory at the Battle of Otterburn. After being confirmed as countess she then became the most sought after bride in the realm and soon was married to Sir Malcolm Drummond, brother-in-law of King Robert III. This marriage however failed to produce any children and the Countess soon became the focus of several plots to usurp her lands by scheming nobleman. While the couple resided at the chief seat to the Earldom of March, Kildrummy Castle, Sir Malcolm was frequently away on royal business, being one of King Robert"s close advisors.
In 1402, while Sir Malcolm was away at one of his other castles, he was suddenly attacked by a large group of highlanders led by the infamous Alexander Stewart, illegitimate son of the Wolf of Badenoch.
Alexander then proceeded to capture the castle and put Sir Malcolm into one of his dungeons where he soon died at the hands of his captor. In the summer of 1404, Alexander and his gang of highlanders descended on her castle of Kildrummy and captured it along with the Countess and was soon able to extort from her a signed document promising to marry Alexander and give over to him all of her lands, including the earldom of March and lordship of the Garioch.
The earldom of March then reverted to the crown and was later given to John Erskine, 1st Earl of March whose descendents hold it to this day.