Complex sentence: It is the successor group to CGHE (Conservative Group for Homosexual Equality) which was founded in 1977 and also went under the name TORCHE (the Tory Campaign for Homosexual Equality, 1992 onwards) and Gay Conservatives.
Split into simpler sentences: It is the successor group to CGHE (Conservative Group for Homosexual Equality) which was founded in 1977. It also went under the name TORCHE (the Tory Campaign for Homosexual Equality, 1992 onwards) and Gay Conservatives.