One of the documents of this period is dated during the patesiate of Ur-Bau himself, in the year in which he undertook certain extensive works of irrigation, while others are dated in the year of Ur-gar's accession, and in that which followed the accession of Nammakhni.[6] From other evidence we know that Nammakhni was Ur-Bau's son-in-law, since he espoused Ningandu, Ur-Bau's daughter, and secured through her his title to the throne.[7] Ur-gar, too, must belong to the generation following Ur-Bau, since a female statue has been found at Tello, which was dedicated to some deity by a daughter of Ur-Bau on behalf of her own life and that of Ur-gar, the patesi.[8] Tablets are also dated in the accession-years of Ka-azag, Galu-Bau, and Galu-Gula,[9] and their contents furnish indications that they date from about the same time.[10] Ur-Ninsun, whose name and title occur on the fragment of a bowl very similar to that employed by Nammakhni's wife,[11] is not mentioned on the tablets, but several are dated in the reigns of Gudea and of his son Ur-Ningirsu.[12] Now, in the reign of Dungi, the son of Ur-Engur, there lived a high priest of the goddess Ninâ named Ur-Ningirsu; and, if we may identify this priestly official with the patesi of that name, as is very probable,[13] we obtain a definite point of contact between the later history of Lagash and that of Ur. But even if the synchronism between Ur-Ningirsu and Dungi be regarded as non-proven, there is no doubt that no long interval separated Gudea's reign from the Dynasty of Ur. The character of the art and the style of writing which we find in Lagash at this time are so similar to those of Ur, that the one period must have followed the other without a break. A striking example of the resemblance which existed in the artistic productions of the two cities at this time is afforded by the votive copper cones, or nails, of Gudea and Dungi, surmounted by the figures of a bull _couchant_. A glance will show the slight changes in the form and treatment of the subject which have been introduced by the metal-workers of Dungi's reign. [Illustration: Fig. 62.--Fig. 63. Copper figures of bulls surmounting cones which were employed as votive offerings in the reigns of Gudea and Dungi.--_Déc._, pl. 28, Figs. 5 and 6; Cat. Nos. 159 and 162.]