Patriarch Bartholomew I

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Pope Leo XIV and Ecumenical Patriarch Bartholomew I of Constantinople sign a joint declaration at the Palace of the Ecumenical Orthodox Patriarchate in Istanbul, Turkey, on Nov. 29, 2025.

Pope Leo XIV and Bartholomew I ‘deeply alarmed’ by global tensions

Nov 29, 2025

By Elias Turk

Pope Leo XIV and Ecumenical Patriarch Bartholomew I of Constantinople said on Saturday they are “deeply alarmed by the current... Read more

Ecumenical Patriarch Bartholomew I.

Patriarch Bartholomew meets with Trump during U.S. visit, talks Middle East, Ukraine

Sep 16, 2025

By Daniel Payne

Ecumenical Patriarch Bartholomew I of Constantinople met with President Donald Trump this week during a visit to the United States. Read more

The Council of Nicaea in 325 as depicted in a fresco in Salone Sistino at the Vatican.

Council of Nicaea aids Christian unity, Catholic and Orthodox leaders say

Aug 29, 2025

By Simone Baroncia

Cardinal Kurt Koch and Bartholomew, Eastern Orthodox ecumenical patriarch of Constantinople marked the 1,700th anniversary of the Council of Nicaea.  Read more

Pope Leo XIV meets with the delegation of the Ecumenical Patriarchate of Constantinople on June 28, 2025, at the Vatican.

Pope Leo XIV seeks to reestablish ‘full visible communion’ with Eastern Orthodox

Jun 30, 2025

By Andrés Henríquez

Pope Leo XIV received members of a delegation from the Eastern Orthodox Ecumenical Patriarchate in a June 28 audience. Read more

Ecumenical Patriarch Bartholomew I of Constantinople during an audience at the Patriarchal headquarters in Istanbul with the German Association of the Holy Land, March 12, 2025.

Patriarch Bartholomew says 1054 church division ‘not insurmountable’ as Nicaea anniversary nears

Mar 15, 2025

By AC Wimmer

While Pope Francis previously announced plans to travel to Turkey, one possible obstacle to a universal agreement could be tensions... Read more

Pope Francis meets with Ecumenical Patriarch Bartholomew I at the Vatican on Oct. 4, 2021.

A path toward unity: Pope Francis proposes joint Catholic-Orthodox celebration of Nicaea anniversary

Nov 30, 2024

By AC Wimmer

The letter was delivered by Cardinal Kurt Koch during his visit to Istanbul for the patronal feast of the Orthodox... Read more

Pope Francis meets with Ecumenical Patriarch Bartholomew I at the Vatican, Oct. 4, 2021.

Orthodox patriarch anticipates Pope Francis visit to Turkey for Council of Nicaea anniversary

May 17, 2024

By Tyler Arnold

Pope Francis might be traveling to Turkey next year for the 1,700th anniversary of the First Council of Nicaea, according... Read more

Ecumenical Patriarch Bartholomew I

Orthodox Patriarch Bartholomew hopes for ‘unified date’ for Easter in East and West

Apr 4, 2024

By Tyler Arnold

“It is a scandal to celebrate separately the unique event of the one Resurrection of the One Lord,” Patriarch Bartholomew... Read more

Pope Francis meets with Ecumenical Patriarch Bartholomew I at the Vatican on Oct. 4, 2021.

Pope to Orthodox patriarch: ‘Bonds of faith, hope and charity’ unite two churches

Nov 30, 2023

By Matthew Santucci

On the feast of St. Andrew the Apostle, Pope Francis sent a message to Ecumenical Patriarch Bartholomew I of Constantinople. Read more

Pope Francis meets with Ecumenical Patriarch Bartholomew I at the Vatican, Oct. 4, 2021.

Pope Francis: Restoration of Christian unity is ‘an urgent priority in today’s world’

Nov 30, 2022

By Courtney Mares

Pope Francis said Wednesday that the full restoration of communion among all Christians is “an urgent priority in today’s world.” Read more

Ecumenical Patriarch Bartholomew I

Why Catholics and Orthodox might once again celebrate Easter on the same date

Nov 18, 2022

By AC Wimmer

The spiritual leader of the world’s Eastern Orthodox Christians has come out in support of finding a common date to... Read more

Archbishop Stanisław Gądecki with Bartholomew I of Constantinople in Warsaw, Poland, on March 29, 2022.

Orthodox leader and Polish Catholic archbishop pray for peace in Ukraine

Mar 29, 2022

By CNA Staff

Patriarch Bartholomew I is visiting Poland to offer his blessing to Ukrainian refugees. Read more

Pope Francis meets with Ecumenical Patriarch Bartholomew I at the Vatican, Oct. 4, 2021.

Pope Francis to Orthodox leader: May God prepare us to receive gift of full unity

Nov 30, 2021

By Courtney Mares

The pope sent the message on the feast of St. Andrew. Read more

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Orthodox leader discusses religious freedom, climate change with Biden

Oct 26, 2021

By Christine Rousselle

Ecumenical Patriarch Bartholomew I discussed religious freedom and climate change with U.S. leaders on Monday in Washington, D.C., and announced... Read more

Pope Francis meets with Ecumenical Patriarch Bartholomew I at the Vatican, Oct. 4, 2021.

Pope Francis thanks God for ‘profound personal bond’ with Orthodox leader

Oct 22, 2021

By Courtney Mares

The Orthodox leader is marking the 30th anniversary of his election. Read more

Adoration of the Blessed Sacrament at the International Eucharistic Congress in Budapest on Sept. 11, 2021.

Cardinal Erdö: Our world today is in burning need of a united Christianity

Sep 11, 2021

By Courtney Mares

"This unity is the will of Christ Himself, who prayed that His disciples may be one, that the world may... Read more

Pope Francis, Archbishop Justin Welby, and Patriarch Bartholomew I at the Basilica of St. Francis of Assisi, Italy, Sept. 20, 2016.

Catholic, Orthodox, and Anglican leaders call climate crisis a ‘devastating injustice’

Sep 7, 2021

By Courtney Mares

The three leaders said: ‘We repent of our generation’s sins.’ Read more

Pope Francis with Ecumenical Patriarch Bartholomew I of Constantinople outside the Basilica of Santa Maria in Aracoeli Oct. 20, 2020.

Imam, rabbi, and Orthodox patriarch wish Pope Francis a swift recovery

Jul 5, 2021

By Courtney Mares

Pope Francis underwent a three-hour operation on the evening of July 4. Read more

Pope Francis with Orthodox Metropolitan Emmanuel of Chalcedon on June 28, 2021.

Pope Francis: ‘The witness of growing communion between us Christians will be a sign of hope’

Jun 28, 2021

By Courtney Mares

Pope Francis told a delegation of the Ecumenical Patriarchate of Constantinople that the witness of growing communion between Christians would... Read more

Pope Francis with Ecumenical Patriarch Bartholomew I of Constantinople outside the Basilica of Santa Maria in Aracoeli Oct. 20, 2020.

Pope Francis tells Orthodox leader: I am confident we will achieve full unity

Nov 30, 2020

Pope Francis told the Ecumenical Patriarch of Constantinople Monday that he is confident that Catholics and Orthodox Christians will attain... Read more