The 7th Duke has no known surviving descendants.

His brother had no known descendants and the two brothers consequently had a single successor.

She is the only member of the family whose known descendants continue down to the present day.

He died unmarried and left no known descendants.

Hugh married Catherine of Valois in 1302, but had no known descendants.

The Indians in question have no known modern descendants.

Loingsech had no known descendants and was succeeded by his brother Guaire.

He married Laura Bourchier although they have no known descendants.

The service was attended by archeologists and local Lutherans, but no known descendants of the settlers were there.

The bolosaurids were a rare group and died out without any known descendants.