Jacoba von Wittelsbach, Countess Regnant of Hainaut, Countess Regnant of Holland, Countess Regnant of Zeeland, was born 16 July 1401 in Le Quesnoy to Wilhelm von Wittelsbach (1365-1417) and Margaret of Burgundy (1374-1441) and died 9 October 1436 in Teylingen of unspecified causes. Notable ancestors include Henry II of England (1133-1189), William I of England (1027-1087), Charlemagne (747-814), Hugh Capet (c940-996), Alfred the Great (849-899). Ancestors are from the United Kingdom, Spain, France, Germany, Portugal, Belgium, the Czech Republic, Russia, Ukraine, Belarus, Switzerland, Hungary, the Netherlands, England, Italy, Turkey, the Byzantine Empire, Sweden, the United States.

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