Mentuhotep III continued his father's building policy, as is shown by this relief, found in Armant and now in the Brooklyn Museum in New York.
It represents the king wearing the Red Crown of Lower-Egypt (left) or wearing the nemes head-dress (right). In the part of the relief to the left, the king is performing a ritual run, often associated with the Heb-Sed festival. This scene is interpreted by some as an indication that Mentuhotep III at least celebrated one such festival, which would imply that his reign must at least have lasted 30 years. It must, however, be noted that this type of scene, while associated with the Heb-Sed festival, is a very common theme in temple decoration, that was also used by kings with very short-lived reigns who never got to celebrating their first jubilee.
The scene to the right continues the Lower-Egyptian context, in that the king's name is confronted with the name of the Lower-Egyptian goddess Uto.
