Complex sentence: The now extinct comital branch was also a member of Ointroducerad Adels Förening in Sweden, and members of the family still own several estates in Sweden, notably Herresta, one of the largest estates of Södermanland County.
Split into simpler sentences: The now extinct comital branch was also a member of Ointroducerad Adels Förening in Sweden. Members of the family still own several estates in Sweden, notably Herresta, one of the largest estates of Södermanland County.