city
İznik (Nicaea)
Summary
İznik, ancient Nicaea, in north-western Türkiye, is where the First Council of Nicaea met in 325. Pope Leo XIV visited on 28 November 2025 with Ecumenical Patriarch Bartholomew I to mark the council's 1,700th anniversary.
Key facts
- Country
- Türkiye
- Ancient name
- Nicaea
- Historic significance
- First Council of Nicaea (AD 325); origin of the Nicene Creed
- Papal visit
- 28 November 2025 — first foreign trip of Pope Leo XIV
The commemoration at İznik was the centrepiece of Pope Leo XIV's first apostolic journey abroad and a strong signal of his ecumenical priorities. The Nicene Creed formulated there remains a shared confession for most of the world's Christians.
Related travels
Speeches delivered here
Related news
Sources
- Primary sourceVatican.va (Holy See) — Leo XIV — official texts, homilies, speeches and documents · Primary / official full texts
- Official sourceHoly See Press Office — Holy See Press Office — Daily Bulletin · Official bulletin, schedule and travel notices
LeoPope links to primary and official texts wherever they exist. See our sources policy.