Order of Cistercians of the Strict Observance
Trappists

Past and Present Leaders

• Augustin Marre, O.C.S.O. † (8 Oct 1904 Appointed - 18 Sep 1922 Resigned)
• Gabriel (André) Sortais, O.C.S.O. † (7 Nov 1951 Appointed - 13 Nov 1963 Died)
• Ignace (Jacques) Gillet, O.C.S.O. † (16 Jan 1964 Appointed - 6 May 1974 Resigned)

Historical Summary

Statistics

Year	Religious Priests	Male Religious	Houses	Source
1954	1,713	3,612		ap1955
1959		6,323		ap1960
1963		4,211		ap1964
1966	1,856	3,770	80	ap1967
1967	1,889	3,819	80	ap1968
1971	1,705	5,031	80	ap1972
1974	1,685	3,090	85	ap1975
1976	1,563	3,244	84	ap1977
1977	1,578	3,179	84	ap1978
1981	1,477	3,045	87	ap1982
1986	1,338	2,834	89	ap1987
1990	1,261	2,718		ap1991
1991	1,260	2,710	91	ap1992
1995	1,167	2,571	93	ap1996
2000	1,036	2,346		ap2001
2001	1,008	2,310		ap2002
2002	1,012	2,325	98	ap2003
2004	933	2,303	98	ap2005
2005	918	2,266	97	ap2006
2009	851	2,088	97	ap2010
2010	818	2,063	97	ap2011
2011	786	2,032	97	ap2012
2012	782	2,009	96	ap2013
2013	770	1,995	96	ap2014
2014	756	1,963	96	ap2015
2017	669	1,790	96	ap2018
2020	622	1,700	89	ap2021
2022	558	1,550	87	ap2023
2024	522	1,441	87	ap2025

Affiliated Members, Living

• Noël Delaquis (Member: Nov 2005 to 2014)
• Yvon-Joseph Moreau, O.C.S.O. (Priest: 22 Oct 1990 to 18 Oct 2008)
• Frédéric Rubwejanga, O.C.S.O. (Member: 1 Nov 2010)
• Lode Van Hecke, O.C.S.O. (Member: 6 Mar 1983; Priest: 20 Aug 1995 to 27 Nov 2019)
• Erik Varden, O.C.S.O. (Member: 20 Apr 2002; Deacon: 9 Sep 2010; Priest: 16 Jul 2011 to 1 Oct 2019)
• Lorenzo Voltolini Esti, O.C.S.O. (Priest: Nov 2018 - )

  ---

Affiliated Members, Deceased

• Ignace (Jacques) Gillet, O.C.S.O. † (Member: 2 Jul 1926; Priest: 24 Aug 1929; Abbot General: 16 Jan 1964 to 6 May 1974)
• John Willem Nicolaysen Gran, O.C.S.O. † (Priest: 21 May 1957 to 27 Dec 1962)
• Timoteo Gruyer, O.C.S.O. †
• Augustin Marre, O.C.S.O. † (Member: 25 Mar 1876; Priest: 18 Nov 1877 to 11 Aug 1900; Abbot Primate: 8 Oct 1904 to 18 Sep 1922)
• Marie-Edouard Mununu Kasiala, O.C.S.O. † (Priest: 20 Aug 1967 to 8 Nov 1984)
• James Michael Myles O’Gorman, O.C.S.O. † (Member: 25 Mar 1841; Priest: 23 Dec 1843 to 28 Jan 1859)
• Placidus Pei Ronggui (Pei Yonggui), O.C.S.O. † (Priest: 1981 to 14 Oct 2003)
• Timothy Clement Smyth, O.C.S.O. † (Member: 1 Nov 1839; Priest: 29 May 1841 to 9 Jan 1857)
• Gabriel (André) Sortais, O.C.S.O. † (Member: 20 Aug 1926; Priest: 29 Jun 1931; Abbot General: 7 Nov 1951 to 13 Nov 1963)
• Ephrem (August) Van der Meulen, O.C.S.O. † (Priest: 16 Nov 1847; Vicar General: 1865 to 1 Mar 1884)

Source(s)

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