First Sealand dynasty

The First Sealand dynasty (URU.KÙKI), or the 2nd Dynasty of Babylon (although it was independent of Amorite-ruled Babylon), very speculatively c. 1796–1524 BC (MC), is an enigmatic series of kings attested to primarily in laconic references in the King Lists A and B, and as contemporaries recorded on the Assyrian Synchronistic king list A.117. Initially it was named the "Dynasty of the Country of the Sea" with Sealand later becoming customary.

The dynasty, which had broken free of the Old Babylonian Empire, was named for the province in the far south of Mesopotamia, a swampy region bereft of large settlements which gradually expanded southwards with the silting up of the mouths of the Tigris and Euphrates rivers (the region known as mat Kaldi "Chaldaea" in the Iron Age). Sealand pottery has been found at Girsu, Uruk, and Lagash but in no site north of that.

The later kings bore pseudo-Sumerian names and harked back to the glory days of the Dynasty of Isin. The third king of the dynasty was possibly even named for the ultimate king of the dynasty of Isin, Damiq-ilišu, though it was written differently. Despite these cultural motifs, the population predominantly bore Akkadian names and wrote and spoke in the Akkadian language. In later times, a Sealand province of the Neo-Babylonian Empire also existed.