Heinrich I von Müllenark
Heinrich I von Müllenark (also Mulnarken) (1190–1238) was the Archbishop of Cologne within the Holy Roman Empire
Holy Roman Empire
The Holy Roman Empire was a realm that existed from 962 to 1806 in Central Europe.It was ruled by the Holy Roman Emperor. Its character changed during the Middle Ages and the Early Modern period, when the power of the emperor gradually weakened in favour of the princes...

 from 1225 until 1237.


Little is known of Heinrich's life before being elected archbishop. Before he was appointed Provost in Bonn
Bonn is the 19th largest city in Germany. Located in the Cologne/Bonn Region, about 25 kilometres south of Cologne on the river Rhine in the State of North Rhine-Westphalia, it was the capital of West Germany from 1949 to 1990 and the official seat of government of united Germany from 1990 to 1999....

, he was called by the surname "Leinenhose".

Heinrich was elected Archbishop of Cologne on 15 November 1225, one week after the murder of the previous archbishop, Engelbert I of Berg
Engelbert II of Berg
Count Engelbert II of Berg, also known as Saint Engelbert, Engelbert of Cologne, Engelbert I, Archbishop of Cologne or Engelbert I of Berg, Archbishop of Cologne was Archbishop of Cologne and a saint; he was the victim of a notorious murder by a member of his own family.-Early life:Engelbert was...

. Heinrich set out immediately to punish the conspirators in the murder, and he received necessary rights and equipment from the Holy Roman Emperor
Holy Roman Emperor
The Holy Roman Emperor is a term used by historians to denote a medieval ruler who, as German King, had also received the title of "Emperor of the Romans" from the Pope...

, Frederick II
Frederick II, Holy Roman Emperor
Frederick II , was one of the most powerful Holy Roman Emperors of the Middle Ages and head of the House of Hohenstaufen. His political and cultural ambitions, based in Sicily and stretching through Italy to Germany, and even to Jerusalem, were enormous...

, and Pope Honorius III
Pope Honorius III
Pope Honorius III , previously known as Cencio Savelli, was Pope from 1216 to 1227.-Early work:He was born in Rome as son of Aimerico...

. A bounty of 2,000 silver marks was placed on the head of the lead conspirator, Frederick I of Isenberg, and his castles were besieged and captured. After travelling to Rome
Rome is the capital of Italy and the country's largest and most populated city and comune, with over 2.7 million residents in . The city is located in the central-western portion of the Italian Peninsula, on the Tiber River within the Lazio region of Italy.Rome's history spans two and a half...

 to have his excommunication lifted, Frederick was captured in Liège
Liège is a major city and municipality of Belgium located in the province of Liège, of which it is the economic capital, in Wallonia, the French-speaking region of Belgium....

 and sold to Cologne, where he was executed on 14 November 1226 at the Severin Gate.

Heinrich continued the policy of his predecessors to increase the power and territories of the archbishopric. He entered into long and costly conflicts with the counts of Mark and Cleves, and the city of Cologne
Cologne is Germany's fourth-largest city , and is the largest city both in the Germany Federal State of North Rhine-Westphalia and within the Rhine-Ruhr Metropolitan Area, one of the major European metropolitan areas with more than ten million inhabitants.Cologne is located on both sides of the...

. He was forced to concede the weakness of the prince-bishopric, and he had to recognise municipal rights on several Westphalia
Westphalia is a region in Germany, centred on the cities of Arnsberg, Bielefeld, Dortmund, Minden and Münster.Westphalia is roughly the region between the rivers Rhine and Weser, located north and south of the Ruhr River. No exact definition of borders can be given, because the name "Westphalia"...

n towns. Despite the temporal failures of Heinrich's reign, spiritually Cologne flourished.

Heinrich was excommunicated
Excommunication is a religious censure used to deprive, suspend or limit membership in a religious community. The word means putting [someone] out of communion. In some religions, excommunication includes spiritual condemnation of the member or group...

 in 1233.

Heinrich was interred in Cologne Cathedral
Cologne Cathedral
Cologne Cathedral is a Roman Catholic church in Cologne, Germany. It is the seat of the Archbishop of Cologne and the administration of the Archdiocese of Cologne. It is renowned monument of German Catholicism and Gothic architecture and is a World Heritage Site...

after his death.
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