Gregoru (English: Gregory; Gregoru Arzoco Raimundu) is Madrilene Emperor since 3025 and Grand Duke of Piedmont since 3003. Gregoru became emperor following the death of Emperor Tancredi of Sicily. The emperorship rotated to Gregoru, who became the fifth emperor of the Triarchy era, and the second Piedmontese emperor, after his father, Umberto III.