To coordinate the entire Order at a universal level, the Grand Master, a cardinal appointed by the Pope, is flanked by a Governing Board which is based in Rome, called the Grand Magisterium. The Grand Magisterium executive consists of the Governor General, four Vice Governors and may include other individuals appointed by the Grand Master. The Governor General oversees the Order’s structural and material organization, in particular all social and charitable activities in the Holy Land. The Master of Ceremonies offers guidance and assistance to the Grand Master in the spiritual development of the Order. The Grand Magisterium also includes the Assessor and the Lieutenant General. The mandates of all the leaders of the Order have a duration of four years, with the possibility of only one renewal of office.
For more information on the Grand Magisterium, see the website:
http://www.oessh.va/content/ordineequestresantosepolcro/en.html
The Vatican website has a listing of all members of the Grand Magisterium and can be found at:
http://www.vatican.va/roman_curia/institutions_connected/oessh/gran_magistero_en.html