There were at least 2 pharaohs in the 13th dynasty called Smenkhare (sometimes written Semenkare)
1750 - 1748; 1785-1783 (Ryholt); c.1738/39 (Krauss, Franke)
Nebnun ( Semenkare )
* smn-kA-ra (Tur.6.11)
Throne name of this ruler smn-kA-ra known of Turin Canon meant Ka is the strengthened power of Re. In faience stela of temple of Gebel Zeit discovered in 1984 is disclosed birth name Nebnwn – [My] Lord is Nun, which indicates that this ruler used galenite mines in Eastern Mountains.
1712 - 1710; 1759-? (Ryholt); c.1711 (Krauss, Franke)
* smnx-kA-ra , [smnx-kA]-ra (Tur.6.21)
imi-rA-mSaw Imiramesha (Commander Of The Army ; General)
J. von Beckerath suggests that name of the ruler which meant Commander of the army was primarily a title adequate to his function and became his name at the moment of his taking the rule. To the king are devoted to colossal sitting statues of Tanis (placed primarily at Memphis) and usurped later by Apopis. He ruled presumably for 2-3 years.
I wonder if it's the statues from TAnis you may have seen?
This info comes from: