On 18 June 1465 , his election was confirmed by Pope Paul II .
After the death of Archbishop Frederick III of Magdeburg on 11 November 1464 , the cathedral chapter unanimously elected John as his successor on 13 December 1464 .
On 18 June 1465 , John 's election was confirmed by Pope Paul II .
After the death of Archbishop Frederick III of Magdeburg on 11 November 1464 , the cathedral chapter unanimously elected John as his successor on 13 December 1464 .