Through her father, she was a great-great-granddaughter of King Robert III wheres her mother was the daughter of Alexander Gordon, 1st Earl of Huntly.
By 1497, Janet was the mistress of Archibald Douglas, 5th Earl of Angus ("Bell the Cat"), with whom she had a daughter, Mary.
[3] In March 1500 the king gave her, in consideration of the "hartlie luve and invict favoris he has and beris to her", extensive lands in Menteith and the keeping of Doune Castle.
[5] Her daughter Lady Margaret Stewart came to court from Darnaway in April 1513, her household being accommodated at Edinburgh Castle.
Barnes, Ishbel Janet Kennedy Royal Mistress (John Donald: Edinburgh, 2007) MacDougall, Norman James IV of Scotland