Where was St Peter?

in the bible, it describes Jerusalem as the centre of Chritianity, with Jesus' brother James as its head. St Paul, Acts 15 and his letters to the Galations ch2, states that he had several meeting with the Apostles at Jerusalem some time before the death of James The Lust(the first Patriarchate of Jerusalem, died 62ce). Paul also states that he went 'again' to Jerusalem with Barnabus and Titus " in response to a revelation" to "lay before them the Gospel (this was after he had been stoned by the jews for his teachings) . these Councils of Jerusalem make no mention of St Peter, whom at this time was supposed to be the Bishop of Rome and the cornerstone (therock) of which the Christian Church was built, exept that it is stated that Paul followed the advice of Simeon Peter - Acts 15:7-11. it is not actually stipulated that Peter was part of the Council at that time. it was James, leader of the Jerusalem Church, who gave his decision on the subject of the Gentiles known as the Apostolic dcr