[2] Zimrilim was forced to flee Mari when his father the king, Iakhdunlim, was assassinated in a palace coup and Yasmah-Adad usurped the throne.
[6] Personal letters were also exchanged, including one notifying the king of her giving birth to a boy and girl twins.
[7] In one of her letters, Shibtu informs Zimrilim, upon his request, on the oracle's prophecy that the Babylonian attack against Mari would end in failure.
[5] In addition to her political roles, Shibtu managed and supervised her large household and the industries of the palace workshops.
Whilst he entrusted Shibtu with kingdom and palace affairs, the governing council was mostly consulted for major decisions.
Furthermore, when Zimrilim's mother died, Shibtu was authorized to administer reserves of precious materials such as metal and wool.