The first ecumenical council of the Christian Church was held in Nicaea in Bithynia (present-day Iznik in Turkey) by the Roman Emperor Constantine I in A.D. 325.
The First Vatican Council was held in Rome, Italy in the Basilica of St. John Lateran.
The first Council of Constantinople.
Roman Catholic AnswerThe first Ecumenical Council of the Church was the First Council of Nicaea, which, unsurprisingly was held at Nicaea as Councils are named after the town or location where they are held.
Vatican Council I was the first Ecumenical Council to be held at the Vatican in Vatican City which is an independent country.
The Council of Trent was held in Trent , Italy .
Rajagriha
The Council of Jerusalem was the Church Council held at Jerusalem.
Roman Catholic AnswerThe first Ecumenical Council of the Church is usually thought of to be First Nicaea held in 325. The Emperor Constantine begged the bishops to hold it.
Kashmir, Organised by kanishka
Roman Catholic AnswerThe First Council of Nicaea held in 325 A.D. was attended by the Emporer Constantine. However, he did not call it, only the Holy Father, the Pope in Rome, can call an Ecumenical Council. It produced the Nicene Creed.
There were exactly no doctrines defined at the Second Vatican Council. The Second Vatican Council was the first purely pastoral council ever held in the Church.
kashmir (first century A.D.)