Input (grade 8): Henry returned to Frascati in 1803. In September of that year he became the Dean of the College of Cardinals and hence Cardinal Bishop of Ostia and Velletri, though he still lived in the episcopal palace at Frascati.
Output (grade 12): When he became the senior cardinal Dean of the Sacred College of Cardinals on 26 September 1803, he transferred to the See of Ostia and Velletri.