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The Lieutenant of the Grand Master is elected for term of one year from the Professed Knights by the Council Complete of State. According to the Constitution, as the religious Superior and Sovereign, he must fully dedicate himself to the development of the works of the Order and to set an example of living by Christian principles, to all the members of the Order. He is vested with supreme authorities. Together with the Sovereign Council, the Lieutenant of the Grand Master issues the legislative measures not covered by the Constitution, promulgates government acts, manages Common Treasure assets, ratifies, international agreements and the summoning of the Chapter General. The States with which the Order has diplomatic relations recognise the Lieutenant of the Grand Master with the prerogatives, immunities and honours reserved for Heads of State. The Lieutenant of the Grand Master resides at the Order’s seat of government the Magistral Palace in Rome.
Lieutenant of the Grand Master Frà Giacomo Dalla Torre del Tempio di Sanguinetto Fra’ Giacomo was born 1944 in Rome. He graduated in Humanities from the University of Rome, specialising in Christian Archeology and History of Art. He took up academic posts at the Pontifical Urbaniana Institute, teaching classical Greek. He was also Chief Librarian and Archivist for the Institute’s important collections and has published a range of essays and articles on aspects of medieval art history. He became a member of the Sovereign Order in 1985 and took his Solemn Vows in 1993. From 1994-1999 he was Grand Prior of Lombardy and Venice and from 1999 to 2004, a member of the Sovereign Council. At the Chapter General of 2004 he was elected Grand Commander of the Order and on the death of the 78th Grand Master, Fra’ Andrew Bertie, he became the Lieutenant ad interim. From 2008 to 2017 Fra’ Giacomo Dalla Torre held the post of Grand Prior of Rome. He was elected Lieutenant of the Grand Master by the Chapter General which took place on 29 April 2017.