I believe something is being lost in the translation. I think he claim is that it was attributed to Shakespeare, not that there was an actual disguise.
Actually, His wife was a man and his daughter was a son, and you are not cousins, but “cousines”. Hate to surprise you like this, but the man is an anthropologist, after all, and he must be right. He restructured the communications industry, too, so he may be related to Algore, and you know what happens when you contradict those people. So suck it up and go pick out new underwear with a friend.