(Archbishop Wilton Gregory  in Washington, January 6, 2004. REUTERS/Larry Downing)

The Roman Catholic Archbishop of Atlanta has apologized for building a $2.2 million mansion to use as his home, a move that made him the object of derision and complaint, and said he may sell it.

Archbishop Wilton Gregory said he took his “eye off the ball” after the archdiocese received a $15 million donation from the estate of Joseph Mitchell, a nephew “Gone With The Wind” author, Margaret Mitchell.

Pope Francis has been urging Roman Catholic officials to live simpler lives and has renounced the papal apartments in the Vatican palace for modest quarters in a Church guest house.

The Vatican removed a German bishop – dubbed the “bishop of bling” – last month from his job because he spent 31 million euros ($43 million) on a residence where fittings included a bath that cost 15,000 euros and 2.9-million-euro private chapel.