Ekaterina Nikolaevna Arsenieva (1778–?): Eldest daughter of Major General Nikolai Arseniev (chief of staff of Count Alexander Suvorov) and V.I.Ushakova. Studied at the Smolny Institute. Lady-in-waiting to Empress Marie Fyodorovna (1796). Married full state councillor P.F.Kozlov (1800).

百度翻译：http://fanyi.baidu.com