Yes, Angela is his sister. My criticism of the name is from his habit of mixing languages between different cultures which drives me crazy. It is even more infuriating from someone who claims to be a linguist which I don't. I rant a bit about this in response to Ultimate-Cheetah's spork of the Letter. I read his author's who inspire me list and Wrede is on the list. Furthermore some of what Angela says is directly plagiarized either word for word or slightly rephrased from Wrede. His claim Angela is based on his sister does not hold up although although I am happy to give her credit for some of the more stupid dialogue. I am hoping someone who has read Wrede will chime in because to me it is really obvious.