11 In the meanwhile, Venerable Brethren, We affectionately grant you in theLord as a pledge of celestial gifts, the Apostolic Benediction, to you and toall the clergy and people committed to your charge. Given at St. Peter's, at Rome, at the solemnity of Easter, in the year 1888, the eleventh of our Pontificate.
Source: Quod Anniversarius (Vatican.va)