Bishop Margot Kaessmann, the first female head of Germany's 24-million Protestant members of the Evangelical Church in Germany, stepped down from that position in February following her arrest for drunken driving.
Kaessmann, 51, said: "I would not have had, in the future, my freedom to point out ethical and political challenges and to make judgments as I do now."
She also resigned as bishop for the district surrounding Hanover, but will continue to work as a pastor.
She reportedly had been driving her church-owned car with a blood alcohol level of .154, three times the legal limit in Germany.
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