Swedish Military Officer and Count. Premarital son of King Gustav II Adolf of Sweden with his mistress Margaret Slots (Trello). In 1633, during the Thirty Years' War, Gustav entered Swedish military service and the next year was appointed Lutheran Administrator of the Prince-Bishopric of Osnabrück. In 1637 he was ennobled with the title of Vasaborg, echoing his father's membership of the House of Vasa. In 1647 he was made Count of Nystad in the Swedish nobility and in 1648 received Wildeshausen in Lower Saxony as his own fief, after it had been won by Sweden at the Peace of Westphalia of that year. He was married to Countess Anna Sofia née Wied-Runkel, who long outlived him, dying in 1694. In 1649 Gustav unsuccessfully sought the position of Lord High Admiral to succeed his uncle Baron Carl Carlson Gyllenhielm (illegitimate son of his grandfather King Carl IX). Dissatisfied with the outcome, he returned to Lower Saxony and died there at Wildeshausen. His body was brought back to Sweden for burial at Riddarholm Church in Stockholm. He and his wife had two sons and three daughters.
Swedish Military Officer and Count. Premarital son of King Gustav II Adolf of Sweden with his mistress Margaret Slots (Trello). In 1633, during the Thirty Years' War, Gustav entered Swedish military service and the next year was appointed Lutheran Administrator of the Prince-Bishopric of Osnabrück. In 1637 he was ennobled with the title of Vasaborg, echoing his father's membership of the House of Vasa. In 1647 he was made Count of Nystad in the Swedish nobility and in 1648 received Wildeshausen in Lower Saxony as his own fief, after it had been won by Sweden at the Peace of Westphalia of that year. He was married to Countess Anna Sofia née Wied-Runkel, who long outlived him, dying in 1694. In 1649 Gustav unsuccessfully sought the position of Lord High Admiral to succeed his uncle Baron Carl Carlson Gyllenhielm (illegitimate son of his grandfather King Carl IX). Dissatisfied with the outcome, he returned to Lower Saxony and died there at Wildeshausen. His body was brought back to Sweden for burial at Riddarholm Church in Stockholm. He and his wife had two sons and three daughters.
Bio by: Count Demitz
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