Elisabeth indeed remained attached to her father-in-law, who was particularly fond of her piety, which did nothing to endear her husband. It should be mentioned that throughout his life, Frederick didn't show any sexual interest in women and the only woman whom he considered a close friend was his older sister, Wilhelmine. However, he was shrewd enough to recognise the opportunity she provided to improve his own relationship with his father and systematically used her to gain royal favours. During the first year of their marriage, Frederick was garrisoned in Ruppin, while Elisabeth lived in Berlin at the King's court. Her husband showered her with letters asking for travel permits, money, etc., from the King or even demanding that she run up debts in Brunswick to pay for his expenses.