Ordering inheritance between the children of two women
The Laws of Lipit-Ishtar · Inheritance provisions; exact section pending collation
What the source says
Provisions order the division of a father's estate between the children of a first wife and the children of a second woman of the household.
Documented context
This is the same legal problem Deuteronomy 21:15 to 17 addresses: a man with children by more than one woman, and an estate that has to be divided without the father's preference deciding it.
The collection predates Hammurabi by roughly two centuries, so the problem was already old law when the Torah legislated on it.
What is disputed
The reconstruction of damaged sections, and how the categories of wife, second wife, and slave woman map onto one another across collections, are disputed.
What I take from it
This helps show that Deuteronomy 21:15 to 17 addresses a legal problem people in that world already recognized. The biblical law gives its own answer by protecting the firstborn of the less-loved wife from his father's preference.