Jordan (Italian: Giordano da Clivio) was the Archbishop of Milan from 1 January 1112 to his death on 4 October 1120. Born in Clivio, he entered the church of Milan young and was ordained a subdeacon while serving under the Archbishop Grossolano.
He was appointed to Saint-Gilles, in Provence, France, to continue his education, as was typical for Milanese youths of his day. He was recalled in 1111 by Olrico da Corte, the vicedominus, and ordained a presbyter on 1 September by Ariald, Bishop of Genoa. The embattled Archbishop Grossolano travelled to the Holy Land, leaving Guazzone Comino and Amizone da Sala in charge with Arderic, Bishop of Lodi, as his acting vicar. On New Year's Day a council of equal numbers of supporters and opponents of the archbishop convened in his absence and, deposing him, elected Jordan to replace him. In February, Landulf, Bishop of Asti, consecrated the new archbishop to his post and, together with Ariald and Mainard, Bishop of Turin|Mainard of Turin, did homage to Jordan as his suffragans. Atto, Bishop of Acqui, and Arderic of Lodi refused to do homage to the new bishop and remained loyal to Grossolano. On 6 December, Mainard formally deposed Grossolano at the altar in S. Ambrogio. Jordan and Bernard, Bishop of Pavia, proclaimed a general peace throughout Lombardy, of which Jordan was now the primate. He received the recognition of Pope Paschal II, legitimising the irregularities of his election.
In August 1113, Grossolano returned from his pilgrimage. Tensions were raised in the city of Milan, where the old archbishop still had some supporters. Finally, on 11 March 1116, Paschal declared Grossolano's transferral from the see of Savona to that of Milan to be invalid and thus null. He was transferred back to Savona and Jordan was again confirmed as the legitimate Ambrosian pontiff.