 As the archbishop of Cologne, Salentin used its resources to improve the conditions in Isenburg-Grenzau, and succeeded in obtaining for it the status imperial immediacy in the Bench of Counts of the Wetterau.On 21 April 1574 he was also elected the Bishop of Paderborn and received papal confirmation.On 9 December he arrived in splendour at Paderborn surrounded by thousands of attendants.