BERLIN -- BERLIN (AP) — A German bishop removed from his diocese by the Vatican following a furor over the spiraling cost of his new residence has retreated to a monastery in Bavaria.

Pope Francis last week expelled Limburg Bishop Franz-Peter Tebartz-van Elst from his diocese pending the outcome of a church inquiry into the residence, which cost 31 million euros ($43 million) — several times what was originally planned.

The Vatican hasn't said how long he might be away but Limburg diocese officials say the inquiry's work is expected to take until January.

Tebartz-van Elst's whereabouts had been a mystery since the Vatican's announcement. A Benedictine monastery in Metten, in southeastern Germany, said Thursday that he arrived there this week to spend a "spiritual time of recovery" of unspecified length.

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  • People watch the residence of Franz-Peter Tebartz-van Elst, Bishop of Limburg, in Limburg, Germany, Thursday, Oct. 17, 2013. Bishop Tebartz-van Elst, currently at the Vatican to meet pope Francis, is accused of wasting money to refurbish and rebuild the residence for more than 31 million euro ( 42 million dollar). (AP Photo/Frank Augstein)

  • Dark clouds hang over the residence of Franz-Peter Tebartz-van Elst, Bishop of Limburg, in Limburg, Germany, Thursday, Oct. 17, 2013. Bishop Tebartz-van Elst, currently at the Vatican to meet pope Francis, is accused of wasting money to refurbish and rebuild the residence for more than 31 million euro ( 42 million dollar). (AP Photo/Frank Augstein)

  • FILE - In this Dec. 3, 2012 file picture Franz-Peter Tebartz-van Elst, Bishop of Limburg , Germany stands in the atrium of the chapel at the Bishop's residence in Limburg, Germany. Pope Francis temporarily expelled the German bishop from his diocese on Wednesday Oct. 23, 2013 because of a scandal over a 31-million-euro ( US dlrs 42 million) project to build a new residence complex, but refused popular calls to remove him. The Vatican didn’t say how long Bishop Franz-Peter Tebartz-van Elst would spend away from the diocese of Limburg. But it said Limburg’s newly named vicar general, the Rev. Wolfgang Roesch, would run the diocese during Tebartz-van Elst’s “period of time away.” (AP Photo/dpa,Boris Roessler,File)

  • FILE - In this Oct. 21, 2013 file picture the entrance of the chapel at the residence of Franz-Peter Tebartz-van Elst , the Bishop of Limburg, is photographed in Limburg, Germany. Pope Francis temporarily expelled the German bishop from his diocese on Wednesday Oct. 23, 2013 because of a scandal over a 31-million-euro ( US dlrs 42 million) project to build a new residence complex, but refused popular calls to remove him. The Vatican didn’t say how long Bishop Franz-Peter Tebartz-van Elst would spend away from the diocese of Limburg. But it said Limburg’s newly named vicar general, the Rev. Wolfgang Roesch, would run the diocese during Tebartz-van Elst’s “period of time away.” (AP Photo/dpa, Fredrik Von Erichsen,File)

  • FILE -In this Oct. 9, 2013 file picture an aerial view of the residence of Bishop Franz-Peter Tebartz-van Elst , foreground, is photographed in Limburg, Germany. Top left the Limburg Cathedral. Pope Francis temporarily expelled the German bishop from his diocese on Wednesday Oct. 23, 2013 because of a scandal over a 31-million-euro ( US dlrs 42 million) project to build a new residence complex, but refused popular calls to remove him. The Vatican didn’t say how long Bishop Franz-Peter Tebartz-van Elst would spend away from the diocese of Limburg. But it said Limburg’s newly named vicar general, the Rev. Wolfgang Roesch, would run the diocese during Tebartz-van Elst’s “period of time away.” (AP Photo/dpa,Thomas Frey,File)

  • The Residence of Franz-Peter Tebartz-van Elst, Bishop of Limburg, is pictured right beside of the cathedral in Limburg, Germany, Thursday, Oct. 17, 2013. Bishop Tebartz-van Elst, currently at the Vatican to meet pope Francis, is accused of wasting money to refurbish and rebuild the residence for more than 31 million euro ( 42 million dollar). (AP Photo/Frank Augstein)

  • People demonstrate against the bishop of Limburg Franz-Peter Tebartz-van-Elst in front of his old residence in Limburg, Germany, Sunday, Oct. 13, 2013. The bishop already facing questions over his new multi-million euro residence now has legal problems on allegations he lied to a Hamburg court. Hamburg prosecutors said Thursday, they asked a court to fine Tebartz-van Elst for providing false testimony. A spokesman for the diocese of Limburg, Martin Wind, told the German news agency dpa Sunday, Oct. 13, 2013, that Bishop Franz-Peter Tebartz-van Elst was meeting officials in Rome but gave no further details. (AP Photo/dpa, Fredrik von Erichsen)

  • Franz-Peter Tebartz-van Elst

    FILE - In this Aug. 29, 2013 file picture the Bishop of Limburg Franz-Peter Tebartz-van Elst talks during the blessing of a new Kindergarten in Frankfurt, Germany. Pope Francis temporarily expelled a German bishop from his diocese on Wednesday Oct. 23, 2013 because of a scandal over a 31-million-euro ( US dlrs 42 million) project to build a new residence complex, but refused popular calls to remove him. The Vatican didn’t say how long Bishop Franz-Peter Tebartz-van Elst would spend away from the diocese of Limburg. But it said Limburg’s newly named vicar general, the Rev. Wolfgang Roesch, would run the diocese during Tebartz-van Elst’s “period of time away.” (AP Photo/Michael Probst,File)