William I of Württemberg
On 24 January 1816, in Saint Petersburg, he married his first cousin, Grand Duchess Catherine Pavlovna of Russia (1788–1819), daughter of Emperor Paul I of Russia (1754–1801) and Princess Sophie Dorothea of Württemberg (1759–1828). The couple had two children:
Sophia Dorothea of Hanover
After the betrothal of Wilhelmine and the Prince of Bayreuth, a message arrived in which George II consented to Wilhelmine marrying the Prince of Wales without her brother marrying his daughter Amelia. This message made the queen convinced that there was still a possibility of concluding a Prussian-British marriage alliance, and she therefore made a point to demonstratively harass the Prince of Bayreuth to stop the wedding. Even on the day of the wedding itself on 20 November 1731, Sophia Dorothea tried to delay the ceremony by disarranging her daughter's hair every time it had been dressed, saying she was not satisfied with the effect, in the hope that an English courier might arrive in time to stop the ceremony.