A goddess who can hardly be distinguished from Bau is Ga-tum-dug.[38] Indeed, from the fact that she is also the 'mother of Lagash,' it might seem that this is but another name for Bau.

However, elsewhere, in two lists of deities invoked by Gudea (Inscr.

B, col.ii.

17), Ga-tum-dug is given a separate place by the side of Bau, once placed before and once after the latter; and it is clear therefore that she was originally distinct from Bau.

For Gudea, Ga-tum-dug is the mother who produced him.
He is her servant and she is his mistress.