Sharra Itu is a Sumerian fertility goddess, originally the tutelary deity of the city of Su-Sin. By Hellenistic times she had probably become the more important deity Sarrahitu who is included in the pantheon at Uruk

Uruk

Uruk was an ancient city of Sumer and later Babylonia, situated east of the present bed of the Euphrates river, on the ancient dry former channel of the Euphrates River, some 30 km east of modern As-Samawah, Al-Muthannā, Iraq.Uruk gave its name to the Uruk...

and mentioned in various cult texts where she is described as "the bride". Presumably she was involved in a sacred marriage ceremony.