[1] Joan had two younger brothers, including the future King of Scotland, James II, and five sisters.

[5] Joan was originally contracted to marry her cousin, James Douglas, The 3rd Earl of Angus, when she was 13 years old.

[d][8] Joan married another James Douglas, The 4th Baron Dalkeith before 15 May 1459, who at the time of their marriage was raised to the peerage as the first Earl of Morton.

[6] Together Joan and her husband James had four children: The Earl and Countess of Morton were buried together in the choir of the parish church of St. Nicholas Buccleuch, known as the Dalkeith Collegiate Church, in Dalkeith, south of Fife and east of Edinburgh, in Midlothian, Scotland.

Today, as one of the visitors remarked, “[o]nce crisply carved and detailed with heraldic devices”, the tombs have “the look of sand sculptures after the tide has washed in and retreated”.