List of heirs of Scotland details those people who have been either heir apparent or heir presumptive to the Kingdom of Scotland, according to the rules of cognatic primogeniture, except at times when other forms of inheritance were specified, for example from 1371 to 1542 when the succession was limited to agnatic primogeniture by Act of Parliament. Females are included in the list where appropriate; however, although the Crown could pass through the female line (for example to the House of Dunkeld in 1034), in the early middle ages it is doubtful whether a queen regnant would have been accepted as ruler.