Oradea in the context of "2021 Romanian census"

The Treaty of Edirne and the Peace of Szeged were two halves of a peace treaty between Sultan Murad II of the Ottoman Empire and King Vladislaus of the Kingdom of Hungary. Despot Đurađ Branković of the Serbian Despotate was a party to the proceedings. The treaty brought an end to the Christian crusade against the Ottomans with significant gains. Within a month Vladislaus abjured his oath at the urging of the papacy and the crusade continued. On 10 November 1444 it ended in disaster at the Battle of Varna where the crusaders were wiped out and Vladislaus killed.

The treaty was started in Edirne with discussions between Murad and Vladislaus' ambassador. Within a few days, it was sent to Szeged with Murad's ambassador, to be finalized and ratified by Vladislaus. Once it arrived, complications caused the negotiations to continue for several more days, and oaths were eventually given in Várad. The ratification took place on 15 August 1444 in Várad.

The Reformed Church in Romania (Hungarian: Romániai Református Egyház; Romanian: Biserica Reformată din România) is a Calvinist denomination and the largest Protestant church in Romania.The majority of its followers are of Hungarian ethnicity and Hungarian is the main church language. The large majority of the Church's parishes are in Transylvania; according to the 2021 census, 495,380 people or 2.6% of the total population belong to the Reformed Church. About 95% of the members were of Hungarian ethnicity.

The religious institution is composed of two bishoprics, the Reformed Diocese of Királyhágómellék and the Reformed Diocese of Transylvania. The headquarters are at Oradea and Cluj-Napoca, respectively.

Arad (Romanian pronunciation: [aˈrad] ) is the capital city of Arad County, at the edge of Crișana and Banat. No villages are administered by the city. It is the third largest city in Western Romania, behind Timișoara and Oradea, and the 12th largest in Romania, with a population of 145,078.

A busy transportation hub on the Mureș River and an important cultural and industrial center, Arad has hosted one of the first music conservatories in Europe, one of the earliest normal schools in Europe, and the first car factory in Hungary and present-day Romania. Today, it is the seat of a Romanian Orthodox archbishop and features a Romanian Orthodox theological seminary and two universities.

Bihor County (Romanian pronunciation: [biˈhor] , Hungarian: Bihar megye) is a county (județ) in western Romania. With a total area of 7,544 km (2,913 sq mi), Bihor is Romania's 6th largest county geographically and the main county in the historical region of Crișana. Its capital city is Oradea (Nagyvárad).

George Martinuzzi, O.S.P.P.E. (born Juraj Utješenović, also known as György Martinuzzi, Brother György, Georg Utiessenovicz-Martinuzzi or György Fráter, Hungarian: Fráter György; 1482 – 16 December 1551), was a Croatian nobleman, Pauline monk and Hungarian statesman who supported King John Zápolya and his son, King John Sigismund Zápolya. He was Bishop of Nagyvárad (now Oradea), Archbishop of Esztergom and a cardinal.

The Treaty of Nagyvárad (or Treaty of Grosswardein) was a secret peace agreement between Emperor Ferdinand I and John Zápolya, rival claimants to the Kingdom of Hungary, signed in Grosswardein / Várad (modern-day Oradea, Romania) on February 24, 1538. In the treaty, they divided Hungary between them according to the actual possession.

Ferdinand recognized Zápolya as John I, King of Hungary and ruler of two-thirds of the Kingdom, while Zápolya conceded the rule of Ferdinand over western Hungary, and recognized him as heir to the Hungarian throne, since Zápolya was childless.

The Crișul Repede (Romanian Crișul Repede ("the rapid Criș"); Hungarian Sebes-Körös) is a river in Bihor County, Crișana, Romania and in southeastern Hungary (Körösvidék). Together with the rivers Crișul Alb ("the white Criș") and Crișul Negru ("the black Criș"), it makes up the Three Criș rivers ("Cele Trei Crișuri"). These are considered the main rivers in the Crișana region of Romania. Historically, when Crișana was recognised as an official region (today, Romania is divided into 40 counties), the Criș rivers were the most important in the region. The basin size of the Crișul Repede is 9,119 km (3,521 sq mi). Its length in Romania is 171 km (106 mi).

The Crișul Repede runs through the city of Oradea, the capital of Bihor County. It flows into the Körös (Criș) near Gyomaendrőd, in Hungary. Part of the water from the Crișul Repede is diverted towards the Crișul Negru by the Criș Collector Canal.

The Reformed Diocese of Királyhágómellék or Királyhágómellék Reformed Church District (Hungarian: Királyhágómelléki Református Egyházkerület; Romanian: Episcopia Reformată de pe lângă Piatra Craiului) is one of the two dioceses of the Reformed Church in Romania, with its headquarters in Oradea. It was part of the Reformed Diocese of Tiszántúl of the Reformed Church in Hungary from the 16th century until 1920, when it came under Romanian administration in accordance with the Treaty of Trianon and became part of the newly founded Reformed Church in Romania. In 2004, it had 320,000 members in 271 congregations and 342 house fellowships. The Apostles Creed, the Heidelberg Catechism and the Second Helvetic Confession are the official standards.

The Reformed Diocese of Transylvania (Hungarian: Erdélyi Református Egyházkerület; Romanian: Episcopia Reformată din Ardeal) is a moderately conservative Reformed, Calvinist church in Romania; its seat is in Cluj-Napoca. Alongside the Reformed Diocese of Királyhágómellék, which has its seat in Oradea, it forms the Reformed Church in Romania.