Three priests and a former priest in Scotland have reported the most senior Catholic clergyman in Britain, Cardinal Keith O'Brien, to the Vatican over allegations of inappropriate behaviour stretching back 30 years. O'Brien, who is due to retire next month, has been an outspoken opponent of gay rights, condemning homosexuality as immoral, opposing gay adoption, and most recently arguing that same-sex marriages would be harmful to the physical, mental and spiritual well-being of those involved". Last year he was named "bigot of the year" by the gay rights charity Stonewall. One of the complainants, it is understood, alleges that the cardinal developed an inappropriate relationship with him, resulting in a need for long-term psychological counselling. The revelation of the priests' complaints will be met with consternation in the Vatican. Allegations of sexual abuse by members of the church have dogged the papacy of Benedict XVI, who is to step down as pope at the end of this month. Following the announcement, rumours have swirled in Rome that Benedict's shock move may be connected to further scandals to come. Those involved believe the cardinal abused his position. "You have to understand," explains the ex-priest, "the relationship between a bishop and a priest. At your ordination, you take a vow to be obedient to him. "He's more than your boss, more than the CEO of your company. He has immense power over you. He controls every aspect of your life."