One of the first documents issued by the Second Vatican Council was the Decree on Ecumenism, Unitatis redintegratio. Ecumenism was high on their list of priorities and they wanted all separated Christian brethern to return to the Church. You may read the full document at the link below, here is the opening paragraph:
1. The restoration of unity among all Christians is one of the principal concerns of the Second Vatican Council. Christ the Lord founded one Church and one Church only. However, many Christian communions present themselves to men as the true inheritors of Jesus Christ; all indeed profess to be followers of the Lord but differ in mind and go their different ways, as if Christ Himself were divided.(1) Such division openly contradicts the will of Christ, scandalizes the world, and damages the holy cause of preaching the Gospel to every creature.
Roman Catholic AnswerThe last Ecumenical Council of the Church was Vatican Council II, held in the early 1960's at the Vatican. For a list list of all 21 Ecumenical Councils see the link below.
Vatican II.
Ecumenical Patriarch Serapheim II of Constantinople died in 1781.
No, Vatican Council I and II were Ecumenical Councils of the Church, they had nothing whatsoever to do with whether someone was validly married. That being said, there was a movement after Vatican Council II to try and see more factors which might possibly invalidate a marriage. However, to the best of my knowledge, the Holy Father has put a stop to this. Either way, you could never "remarry". The only time that you could have a second marriage was if they proved that the first marriage was not valid to begin with, thus the second marriage would not really be a second marriage.
Roman Catholic AnswerThere was no new "church of Trent". The Council of Trent was 19th of 21 general ecumenical councils of the Catholic Church, (not counting the Council of Jerusalem in the books of Acts): First Ecumenical Council: Nicaea I (325)Second Ecumenical Council: Constantinople I (381)Third Ecumenical Council: Ephesus (431)Fourth Ecumenical Council: Chalcedon (451)Fifth Ecumenical Council: Constantinople II (553)Sixth Ecumenical Council: Constantinople III (680-681)Seventh Ecumenical Council: Nicaea II (787)Eighth Ecumenical Council: Constantinople IV (869)Ninth Ecumenical Council: Lateran I (1123)Tenth Ecumenical Council: Lateran II (1139)Eleventh Ecumenical Council: Lateran III (1179)Twelfth Ecumenical Council: Lateran IV (1215)Thirteenth Ecumenical Council: Lyons I (1245)Fourteenth Ecumenical Council: Lyons II (1274)Fifteenth Ecumenical Council: Vienne (1311-1313)Sixteenth Ecumenical Council: Constance (1414-1418)Seventeenth Ecumenical Council: Basle/Ferrara/Florence (1431-1439)Eighteenth Ecumenical Council: Lateran V (1512-1517)Nineteenth Ecumenical Council: Trent (1545-1563)Twentieth Ecumenical Council: Vatican I (1869-1870)Twenty-first Ecumenical Council: Vatican II (1962-1965)All of these councils were councils called by the Holy Father and attended by as many bishops as he could get there. They were all guided by the Holy Spirit and approved by Rome so that their decisions are binding on all of Christ's Church. Each and everyone of them was called to deal with various heresies. Many of their decisions involved the first time a doctrine was actually "defined" for the simple reason that it was the first time it had seriously been called into question. There was no new church after Trent, just as there was no new church after Nicaea. Despite other opinions to the contrary, the Church of Rome was established by Christ and remained faithful to Him throughout the centuries. There is no "church of Trent".
Vatican Council II (1962 - 1965) was held in Vatican City located in Rome, Italy.
Yes
Vatican II lasted approximately 3 years: 1962-1965.
In Vatican City, thus the name Vatican Council II.
Popes John XXIII and Paul VI were popes during Vatican II.
Pope Paul VI closed Vatican II.
Gilles Routhier has written: 'Vatican II' -- subject(s): Catholic Church, History, Influence, Vatican Council (2nd : 1962-1965) 'Receptins De Vatican II'