Sestra Vdovy (Steve Rogers/Captain America)

(The Widow's Sister)

People don't know a lot about Natasha Romanova . They only know what they have been told, though she never told them everything. Only one person knows everything about her, and that person would be The Recluse or otherwise known as Clara Romanova. The reason her name is The Recluse is due to one major detail, no one knows that it is her. Very few people know that she is The Recluse and that is how she likes it, otherwise how would she be able to do all of the undercover work she is great at.