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Diocese of Washington
|Ecclesiastical province||Province III|
|Cathedral||Cathedral Church of Saint Peter and Saint Paul|
Location of the Diocese of Washington
The Episcopal Diocese of Washington is a diocese of the Episcopal Church covering Washington, D.C. and nearby counties of Maryland in the United States. With a membership of over 39,000, the diocese is led by the Bishop of Washington, Mariann Budde. It is home to Washington National Cathedral, which is the seat of both the diocesan bishop and the Presiding Bishop of the Episcopal Church.
Since its creation in 1895 from the Episcopal Diocese of Maryland, the territory has included the District of Columbia, adjacent suburban Maryland counties of Prince George's and Montgomery, and the southern Maryland counties of Charles County and St. Mary's County.
The land now known as the District of Columbia was once part of Prince George's County, Maryland. A congregation which later became known as Rock Creek parish was founded in 1712, and by seven years later had built a chapel of ease for ( Broad Creek Parish), which was the spiritual counterpart to secular government in Prince George's County. The congregation built a larger, Georgian style building in 1775, which is now known as St. Paul's Episcopal Church, Rock Creek Parish (Washington, D.C.). It is the oldest religious institution within the District of Columbia. The former glebe (farm to support the parish priest) became the non-denominational Rock Creek Cemetery, now also home to the InterFaith Conference of Metropolitan Washington.
As European settlement moved westward and the area's population increased, additional congregations began and built chapels within what Maryland's General Assembly in 1776 designated Montgomery County. These congregations had split off from Broad or Rock Creek parish and became Prince George's Parish in 1726 (later Christ Episcopal Church (Rockville, Maryland)) and Eden or Sugarland Parish in 1737 (which later became St. Peter's Church ( Poolesville, Maryland)), only to be reassigned to the newly formed diocese of Washington over a century later.
After the American Revolutionary War, both Maryland and Virginia donated land to form the new federal District of Columbia. Additional congregations which ultimately became parishes formed much nearer the Potomac River at this time, including Christ Church, Washington Parish (a/k/a Navy Yard; 1794) and St. John's Episcopal Church, Georgetown Parish (1796). After the destruction of the War of 1812, with the Burning of Washington in August 1814, St. John's Episcopal Church, Lafayette Square (1815) was built facing historic Lafayette Square across from the rebuilt "President's House", at 1600 Pennsylvania Avenue, N.W., (in the historic Lafayette Square Historic District) which later became known as the "Executive Mansion" and later the White House. St. John's has been long known as the "Church of the Presidents", visited frequently by neighboring chief executives and is the traditional site for an early morning prayer service and mass during inauguration days on March 4 and later January 20. Another historic episcopal church formed in the capital city, and which hosted nearby Maryland diocesan conventions, is the Church of the Epiphany (Washington, D.C.). Parishes formed during the 19th Century's " Oxford Movement" included St. Paul's Church on K Street, and St. James' Church on Capitol Hill. At least six historic African-American parishes formed in the capital city during the late 19th and early 20th Centuries. 
Construction of the Gothic Revival "Cathedral Church of Saint Peter and Saint Paul in the City and the Diocese of Washington" (usually known as the Washington National Cathedral) on Mount Saint Albans at the intersection of Massachusetts and Wisconsin Avenues in northwest Washington began with a charter issued by the United States Congress in 1893 and on September 29, 1907, the cornerstone was laid in the presence of 26th President Theodore Roosevelt and a crowd of 20,000 and continued with fits and starts until its general completion in the early 1990s, with a ceremony attended by 41st President, George H.W. Bush, serving as a "national house of prayer for all people" and becoming a national landmark for the Protestant Episcopal Church in the U.S.A. and icon for the Anglican Communion in the world.
The first African-American bishop for the Diocese was elected and ordained with John Thomas Walker as the sixth prelate in 1977 who served until his death 12 years later. After the eighth bishop of Washington, John Bryson Chane, announced his intention to retire in the fall of 2011,  a diocesan convention on June 18, 2011 elected Mariann Edgar Budde as its first female diocesan bishop. She was ordained and consecrated on November 12, 2011.
|Bishop of Washington||Name||Dates|
|1st||Henry Yates Satterlee||1896–1908|
|3rd||James E. Freeman||1923–1943|
|5th||William Forman Creighton||1962–1977|
|6th||John Thomas Walker||1977-1989 (Coadjutor, 1976–1977; died in office September 30, 1989)|
|7th||Ronald H. Haines||1990-2000 (Bishop of Washington pro tempore 1989-1990)|
|8th||John Bryson Chane||2002- 2011|
|9th||Mariann Edgar Budde||2011 -|
- Paul Moore, Jr. Bishop Suffragan, 1964-1970 (subsequently Coadjutor Bishop of New York 1970-1971 and 13th Bishop of New York 1972-1989)
- John Thomas Walker, Bishop Suffragan, 1971-1976 (subsequently Bishop of Washington pro tempore and 6th Bishop of Washington)
- George T. Masuda, Assisting Bishop, 1985-1986 (previously Bishop of North Dakota 1965-1979)
- William Benjamin Spofford Jr., Assistant Bishop, 1979–1984, 1990 (previously Bishop of Eastern Oregon, 1969–1979)
- Ronald Hayward Haines, Bishop Suffragan 1986-1989 (subsequently Bishop of Washington pro tempore and 7th Bishop of Washington)
- Jane Holmes Dixon, Bishop Suffragan 1992-2000, Bishop of Washington 'pro tempore' 2001-2002
- Allen Lyman Bartlett Jr., Assisting Bishop 2001-2004 (previously Coadjutor Bishop of Philadelphia 1986-1987 and Bishop of Pennsylvania 1987-1998)
- Barbara Clementine Harris, Assisting Bishop 2003-2007 (previously Bishop Suffragan of the Diocese of Massachusetts 1989-2003)
- Episcopal Diocese of Washington
- Washington National Cathedral
- Journal of the Annual Convention of the Protestant Episcopal Church of the Diocese of Washington at the Online Books Page