Did Einstein really have an affair wity his biological cousin's biological daughter in addition to marrying his biological cousin?

https://imgflip.com/i/3hhjdw

https://imgflip.com/i/31sj6q

https://imgflip.com/i/2uu1u0

http://68.media.tumblr.com/e93edebfa85c812d66dc503d7e2fb177/tumblr_na97rhSDgv1tjxoqgo1_1280.jpg

http://cousinfacts.tumblr.com/

I am not endorsing cousin marriage by posting this