Senwosret III (aka Senusret III)
From Hierakonpolis. Middle Kingdom, Dynasty 12, reign of Senwosret III, circa 18361818 B.C.E.
Black granite, 21 7/16 in. (54.5 cm) high; base: 7 1/2 x 13 11/16 in. (19 x 34.7 cm)
Charles Edwin Wilbour Fund, Brooklyn #52.1

There's a sense of his seriousness and strength in this able portrait of him as an older ruler.

View of his cartouche

Photos © Joan Lansberry, May 2008, close up of head, May 2012

I'm not sure about Senwosret's dates. London's University College website gives different dates for him, 1872-1853 BCE rather than 18361818 BCE.

The Oxford History book gives more info:
"Although the Turin Canon gives Khakaura Senusret III (c.1870-1831 BC) a reign of over thirty years, the latest regnal year recorded by dated sources is 19. On the other hand, discoveries during the 1990's may support the longer date (see chronological discussion at the beginning of the chapter). There is no real evidence for a co-regency with Senusret II, but if one could be proven it would help resolve some difficulties caused by the unusually long reign.

"Senusret is perhaps the most 'visible' monarch of the Middle Kingdom: his exploits gathered renown over time and substantially contributed to the character of 'Sesostris' (a kind of composite heroic Middle Kingdom ruler) described by Manetho and Herodotus."_The Oxford History of Ancient Egypt_, edited by Ian Shaw, pages 165-166)

The Metropolitan Museum has a Sphinx of Senwosret III