 Carlo Giuliani was ordained a priest in the Order of Preachers.On 3 Feb 1653, he was appointed during the papacy of Pope Innocent X as Bishop of Ston.On 9 Feb 1653, he was consecrated bishop by Marcello Santacroce, Bishop of Tivoli, with Giovanni Lucas Moncalvi, Bishop of Guardialfiera, and Riginaldo Lucarini, Bishop of Città della Pieve, serving as co-consecrators.