Einstein's Daughter by Michele Zackheim

Although there is proof that Einstein did indeed have a daughter named Lieserl before he married his first wife and Lieserl's mother, the rest of this story seems to drift easily from fact to folklore.  If this story is to be believed, it is hard to imagine that the great scientist ever got his libido under control long enough to write a grocery list, let alone a Theory of Relativity.  Most of this telling revolves around trying to learn about Mileva, his first wife, and a scientist in her own right - until she came under the spell of the great love of her life.  It is full of Balkan superstition and social convention as well as quotes from Einstein's correspondence with all of his lovers (which included his cousin).  It appears well researched but the dots are connected with some pretty wavy lines.