Alexander VII, Pope. Dilectis filiis, nobilibus viris Bertuccio Valerio Duci, et remp. Venetiarum. Copy of a Latin letter of thenks by Pope Alexander VII to the Doge and the Republic of Venice, dated Rome, Jan. 27, 1657. Pastor XIV/1, p. 363, mentions the letter, the original of which is in the Papal Secret Archives. 2 pages (f. 116). 8vo.