From Vatican News:
[edited for clarity from the Italian by James Hadley]
Pope appoints new Master of Pontifical Liturgical Ceremonies
By Vatican News staff writer
The Holy Father has appointed the Most Reverend Diego Giovanni Ravelli as Master of Pontifical Liturgical Celebrations and as head of the Pontifical Sistine Chapel Choir.
Monsignor Diego Giovanni Ravelli was born on 1 November 1965 in Lazzate, Italy. He was ordained a priest for the Public Clerical Association Priests of Jesus Crucified in 1991, then incardinated in the diocese of Velletri-Segni. In 2000 he obtained a diploma in pedagogical methodology from the Faculty of Educational Sciences at the Salesian Pontifical University in Rome, and in 2010 a doctorate in sacred liturgy at the Liturgical Institute of the Pontifical Athenaeum of Saint Anselm in Rome. From 2013 he has served as office head in the Office of Papal Charities, where he had held the role of official since 1998. After collaborating with the Office for the Liturgical Celebrations of the Supreme Pontiff as an assistant MC, he was appointed as a Papal MC in 2006.
Msgr. Ravelli takes over the role of head of Pontifical Liturgical Celebrations from Monsignor Guido Marini, who earlier this year was appointed bishop of Tortona by Pope Francis.
Appointment of Pontifical Master of Ceremonies
The Reverend Cristiano Antonietti, nunciature secretary, in service in the Section for General Affairs of the Secretariat of State, has been appointed as a Pontifical MC.