The precise date and place of his birth, or anything regarding his family connections, have not yet been ascertained, although he is almost certainly a member of one of the great Lauder families of that time - Lauder of The Bass, or Lauder of Haltoun.
His birthdate and familial information are uncertain, but there's a strong possibility that he belongs to one of the notable Lauder families active in his era—Lauder of The Bass or Lauder of Haltoun.