By his beloved consort Ulrica Leonora of Denmark, from the shock of whose death in July 1693 he never recovered, he had seven children, of whom only three survived him, a son Charles, and two daughters, Hedwig Sophia, duchess of Holstein, and Ulrica Leonora, who ultimately succeeded her brother on the Swedish throne.
The so-called " Hedwig " glasses may also have originated in Constantinople.
A small steamer, the " Good News," was placed on the lake by the London Missionary Society in 1884, but afterwards became the property of the African Lakes Corporation; a larger steamer, the " Hedwig von Wissmann," carrying a quick-firing Krupp gun, was launched in 1900 by a German expedition under Lieutenant Schloifer; and others are owned by the " Tanganyika Concessions " and Katanga companies.
His son Louis was appointed landgrave of Thuringia in 1130 by the emperor Lothair II.; by his marriage with Hedwig of Gudensberg in 1137 he obtained a large part of Hesse.
Essen was originally the seat of a Benedictine nunnery, and was formed into a town about the middle of the 10th century by the abbess Hedwig.