[2] His name means "youth of his heart" in Sumerian, with the possessive pronoun possibly referring to Shulshaga's father, Ningirsu.
[1] While direct references to the lineage of deities are rare in sources from the Early Dynastic period, it is certain that Shulshaga was viewed as the eldest son of Ningirsu and his wife Bau, and as the older brother of Igalim.
[6] Urukagina mentions building temples to multiple deities of Lagash, including Shulsaga, as well as his parents, brother, as well as Hegir, Bau's Lamma and Ninmu.
[6] One inscription of Gudea mentions him alongside Ningirsu and the king's tutelary god Ningishzida, and credits him with providing him with the "breath of life.
[9] Late lexical texts also sometimes apply the names Shulshaga and Igalim to the weapons of Zababa.