The noble house of Naryshkin has always been a magical one, and though it's made a lot of alliances with muggle houses in the past, a great effort was made to keep the main line pure. They became Tsars in 1672, the year after the great beauty Natalya Naryshkina married Alexei Mikhailovich of house Romanov, the reigning muggle Tsar. Natalya showed favour to her family by persuading her husband to relinquish power over magical Russia, which he didn't understand, and thus her brother Feodor Naryshkin became the first magical Tsar.
Almost four hundred years later, Anatoliy Naryshkin came into power, bringing with him his wife Natalya and one-year-old twin children, now Tsarevich Nikolai Anatoliyevich and Tsarevna Anzhela Anatoliyevna. In the next five years came by Tsarevna Irina Anatoliyevna, Tsarevich Alexei Anatoliyevich and Tsarevich Pyotr Anatoliyevich.
Anzhela's childhood was spent being turned away from her busy father's study door, learning the proper ways of court from her mother, and lording over her younger brothers - after all, if Nikolai was busy learning how to be Tsar, someone had to take charge. A few minutes had taken the throne from her, but she told herself that she'd much rather be the beautiful princess than the ever-occupied queen. Her first sign of magic occurred at the age of seven, when her dance instructor kept nagging at her to glide. She didn't glide, but the minor floating she did achieve overruled that.
Anzhela and Nikolai were enrolled in Koldovstvorets, and practically waltzed their way through the first four years there. Both were "worthy", and used their natural charm to make a lot of friends. At the end of their third year, however, their parents decided to split them up - Nikolai was sent to Durmstrang, and Anzhela to Beauxbatons. Anzhela disliked it there, to say the least, and so transferred to Hogwarts for her fifth year.