Complex sentence: Most genealogical historians agree that Anders' parents were Barbara Saint Clair and Bartholomew Mowat, however, they are not mentioned in any contemporary sources-additionally, there is no documentation to support or dispute this theory.
Split into simpler sentences: Most genealogical historians agree that Anders' parents were Barbara Saint Clair and Bartholomew Mowat; however, they are not mentioned in any contemporary sources. Additionally, there is no documentation to support or dispute this theory.