Enzo of Logudoro Hohenstaufen , 1238 -- 1245 , was the illegitimate son of Emperor Frederick II .
Enzo of Logudoro Hohenstaufen , 1238 -- 1245 , was appointed by his father .
Enzo of Logudoro Hohenstaufen , 1238 -- 1245 , was the illegitimate son of Emperor Frederick II and was appointed by his father .