Bava Batra 112 - Not to Transfer Land in Israel Between Tribes

A man inherits his wife, but she does not inherit him. In discussing the laws of inheritance, it says "... and you shall give his inheritance to … his flesh and he shall inherit her ..." and "his flesh" means his wife, because "... they shall become one flesh ..."

In connection with this, there was a commandment for a Jewish woman to marry only within her tribe . The commandment was in force only during the years of conquest of the Land of Israel. It was applicable only to a woman who could potentially inherit land at the time of marriage - that is, if she had no brothers and was thus her father's prospective heir.

Art: Amedeo Modigliani - The Sculptor Jacques Lipchitz and His Wife Berthe Lipchitz