Arno of Salzburg was a prominent 8th-century prelate who served as the first archbishop of Salzburg. Born to a noble Bavarian family around 750, he rose through the ecclesiastical ranks, serving as an abbot before becoming bishop in 785. He played a vital role in the Carolingian Empire, acting as a trusted advisor and envoy for Charlemagne. Known among scholars as Aquila, he helped establish Salzburg as a major ecclesiastical center and was a key figure in the administrative and religious reforms of the era.