Анна Иоанновна
When her husband died in 1698, Elisabeth Sophie became joint guardian-regent along with her former brother-in-law Ferdinand. In January 1701, Elisabeth Sophie left Courland, her son and stepdaughter for her brother's court in Berlin. In 1703, she was formally deprived of the custody of her son and the regency. She was later given a Russian allowance from Anna of Russia.