She was daughter to William Menteith of Kerse. However it is not certain which William Menteith of Kerse as there were five successive generations of that name. Based on a best guess of dates she would most likely be the daughter of the first William Menteith of Kerse. However, if not then she would be his grand-daughter and thus this line is still a correct ancestral line for her either way. But I may be off by one generation.