Hedvig Sophia of Sweden

Princess Hedvig Sophia Augusta of Sweden , was a Swedish princess and a Duchess Consort of HolsteinGottorp, the eldest child of King Charles XI of Sweden, and his spouse Queen Ulrica Eleanor. She was heir presumptive to the Swedish throne until her death and the regent of the duchy of HolsteinGottorp for her minor son from 1702 to 1708. Some sources refer to her as Sofia.

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Source: Wikipedia