Complex sentence: Later, Mari became part of Assyria and was listed among the territories conquered by the Assyrian king Tukulti-Ninurta I (reigned 1243--1207 BC), afterward Mari constantly changed hands between Assyria and Babylon.
Split into simpler sentences: Later, Mari became part of Assyria and was listed among the territories conquered by the Assyrian king Tukulti-Ninurta I (reigned 1243--1207 BC). Afterward, Mari constantly changed hands between Assyria and Babylon.