Itzcuinnan.

a name; e.g. don Agustín Itzcuinnan, who was a ruler in Chilapan; he was also father of doña Agustna de Guzmán

(central Mexico, 1614)
see Annals of His Time: Don Domingo de San Antón Muñón Chimalpahin Quauhtlehuanitzin, James Lockhart, Susan Schroeder, and Doris Namala, eds. and transl. (Stanford: Stanford University Press, 2006), 282–283.