She is best known as the mistress of King James IV of Scotland .
Janet Kennedy ( c. 1480 -- c. 1545 ) , was a Scottish noble , the first daughter of John Kennedy , 2nd Lord Kennedy and Lady Elizabeth Gordon .
Janet Kennedy is best known as the mistress of King James IV of Scotland .
Janet Kennedy ( c. 1480 -- c. 1545 ) , was a Scottish noble , the first daughter of John Kennedy , 2nd Lord Kennedy and Lady Elizabeth Gordon .