Robert I (died 1107) was an Italo-Norman nobleman, the eldest son of Geoffrey of Hauteville, one of the elder sons of Tancred of Hauteville. He was the first count of Loritello in 1061. Like his father, he began his military conquests in the Abruzzi, encroaching on lands held by the Pope. He advanced as far as Ortona in 1070, a year before his father's death. Unsurprisingly, he was excommunicated (February 1075). Pope Gregory VII speaks of his "Godless insolence." Where Duke Robert Guiscard and Prince Richard of Capua had failed to expand northwards, Robert of Loritello and Richard's son Jordan had success. By 1075, Robert was making his seat at Chieti. While Jordan advanced in the district around Lake Fucino, Robert advanced up the Adriatic coast. He made his brother Drogo count of Chieti