1) It is written in the Testament of R. Yehudah HaChassid that a man must not marry a woman if the prospective father-in-law’s name is the same as his own. And if he did marry such a woman, the name should be changed.

2) Some do not pay attention to this precaution, because there are several passages in the Talmud that imply the opposite.

3) Some say that the Testament was intended exclusively for his own descendants, not for the general public.