Known As 
Saying Felice Bauer is only known as Felice is, in the context of an article called Felice Bauer a contradiction of terms. It is also unsourced, and in bad English (the correct English construction would be "she is known by her first name only"). The misunderstanding originates apparently from the fact that Kafka called her so, which is quite obvious, considering they had been engaged. I am, therefore, unless somebody comes with a reasonable source for the statement, deleting it from the lead and whatever other occurrence in the body of the article. In case such source is found, I shall correct the syntax.