Ambrose was placed in the archiepiscopate of Milan in 374. The letter of Basil is in reply to a request for the restoration to his native city of the relics of St. Dionysius of Milan, who died in Cappadocia in 374. cf. Ath., Ep. ad Sol.; Amb. iii. 920.
Editorial footnote · The Letters, Chapter uncertain; original source section: Letter 197, editorial note cite_note-2 · Original source