His manner toward her was described as rough and so noted that when he displayed the opposite, it was seen as a surprise. Upon the death of her mother in 1726, Sophia Dorothea inherited a sum of three million, whereupon it attracted attention that Frederick William suddenly treated her very well: the Imperial ambassador reported that this was merely because he wanted her money, and when she never received it (as her brother refused to release the sum), Frederick William resumed his usual manner toward her.