Nabu-apla-iddina was a Babylonia

Babylonia

Babylonia was an ancient cultural region in central-southern Mesopotamia , with Babylon as its capital. Babylonia emerged as a major power when Hammurabi Babylonia was an ancient cultural region in central-southern Mesopotamia (present-day Iraq), with Babylon as its capital. Babylonia emerged as...

n king who reigned ca. 888 – 855 BC. His father was King Nabu-shuma-ukin. During much of Nabu-apla-iddina's reign Babylon faced a significant rival in Assyria

Assyria

Assyria was a Semitic Akkadian kingdom, extant as a nation state from the mid–23rd century BC to 608 BC centred on the Upper Tigris river, in northern Mesopotamia , that came to rule regional empires a number of times through history. It was named for its original capital, the ancient city of Assur...

 under the rule of Ashurnasirpal II. Nabu-apla-iddina was able to avoid both outright war and significant loss of territory although there was some low level conflict including a case where he sent a party of troops led by his brother to aid rebels in Sukhu. Later in his reign Nabu-apla-iddina agreed a treaty with Ashurnasirpal II’s successor Shalmaneser III

Shalmaneser III

Shalmaneser III was king of Assyria , and son of the previous ruler, Ashurnasirpal II....

. Internally Nabu-apla-iddina worked on the reconstruction of temples and something of a literary revival took place during his reign with many older works being recopied. He was succeeded by his son Marduk-zakir-shumi I

Marduk-zakir-shumi I

Marduk-zakir-šumi I was a king of Dynasty IX of Babylon, from 855-819 BC. Marduk-zakir-šumi I is known to have made at least one kudurru boundary stone....

.