Henry IV was the duke

Duke

A duke or duchess is a member of the nobility, historically of highest rank below the monarch, and historically controlling a duchy...

 of Limburg

Duchy of Limburg

The Duchy of Limburg, situated in the Low Countries between the river Meuse and the city of Aachen, was a state of the Holy Roman Empire. Its territory is now divided between the Belgian provinces of Liège and Limburg , the Dutch province of Limburg , and a small part of North Rhine-Westphalia in...

 and count

Count

A count or countess is an aristocratic nobleman in European countries. The word count came into English from the French comte, itself from Latin comes—in its accusative comitem—meaning "companion", and later "companion of the emperor, delegate of the emperor". The adjective form of the word is...

 of Berg

Berg (state)

Berg was a state – originally a county, later a duchy – in the Rhineland of Germany. Its capital was Düsseldorf. It existed from the early 12th to the 19th centuries.-Ascent:...

 from 1226 to his death. He was the son of Waleran III

Waleran III of Limburg

Waleran III was initially lord of Montjoie, then count of Luxembourg from 1214. He became count of Arlon and duke of Limburg on his father's death in 1221. He was the son of Henry III of Limburg and Sophia of Saarbrücken.As a younger son, he did not expect to inherit...

, count of Luxembourg

Luxembourg

Luxembourg , officially the Grand Duchy of Luxembourg , is a landlocked country in western Europe, bordered by Belgium, France, and Germany. It has two principal regions: the Oesling in the North as part of the Ardennes massif, and the Gutland in the south...

 and duke of Limburg, and Cunigunda, daughter of Frederick I, Duke of Lorraine

Frederick I, Duke of Lorraine

Frederick I was the duke of Lorraine from 1205 to his death. He was the second son of Matthias I and Judith, daughter of Frederick II, Duke of Swabia. He succeeded his brother, Simon II, who had already given him the county of Bitche in 1176 and had recognised him over the northern, germanophone...

.

Originally lord of Montjoie, he married Irmgard of Berg

Irmgard of Berg

Irmgard of Berg, heiress of Berg , was the child of Adolf VI count of Berg and Berta von Sayn.She married in 1217 Henry IV, Duke of Limburg , who became count of Berg in 1225. Henry IV of Limburg-Berg died on 25 Feb 1246; their descendants were counts of Berg, the county of Berg leaving the...

, heiress of the County of Berg, a daughter of the count Adolf VI, who died at the Siege of Damietta

Siege of Damietta

The Siege of Damietta of 1218 was part of the Fifth Crusade. The city, under the control of the Ayyubid Al-Kamil, was besieged by and taken by the Crusaders in 1219....

 in 1218. Irmgard and Henry could not immediately inherit the county, as it was held by Engelbert I

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...

, Archbishop of Cologne. Engelbert being the principal adviser of Frederick II, Holy Roman Emperor

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...

, he was confirmed in the county for life, paying a rent to Henry and Ermengard.

Engelbert was assassinated on 7 November 1225 and Henry inherited Berg, inheriting Limburg a little while later. He then entrusted Montjoie to his brother Waleran

Waleran IV of Limburg

Waleran IV was the duke of Limburg from 1247 to his death. He was the son and successor of Henry IV and Ermengarde, countess of Berg....

, who already held Fauquemont. He then fought count Frederick of Isenberg

Frederick of Isenberg

Count Frederick of Isenberg was a German noble, the younger son of Count Arnold of Altena...

, his brother-in-law, who was suspected of the assassination of Engelbert. In 1228, took part in the Sixth Crusade

Sixth Crusade

The Sixth Crusade started in 1228 as an attempt to regain Jerusalem. It began seven years after the failure of the Fifth Crusade. It involved very little actual fighting...

 to the Holy Land

Holy Land

The Holy Land is a term which in Judaism refers to the Kingdom of Israel as defined in the Tanakh. For Jews, the Land's identifiction of being Holy is defined in Judaism by its differentiation from other lands by virtue of the practice of Judaism often possible only in the Land of Israel...

. Upon returning to Germany, he made war on the archbishop of Cologne, Konrad von Hochstaden

Konrad von Hochstaden

Konrad von Hochstaden was Archbishop of Cologne from 1238 to 1261.-Life:Konrad was a son of Count Lothar of Hochstadt, canon of St. Maria ad Gradus and of the old Cologne Cathedral, and Mathilde of Vianden. His date of birth is unknown, and nothing is known of his early youth...

 between 1238 and 1241. He was counted among the partisans of the Hohenstaufen

Hohenstaufen

The House of Hohenstaufen was a dynasty of German kings in the High Middle Ages, lasting from 1138 to 1254. Three of these kings were also crowned Holy Roman Emperor. In 1194 the Hohenstaufens also became Kings of Sicily...

.

He and Imgard of Berg had 2 sons :

• Waleran
  Waleran IV of Limburg
  Waleran IV was the duke of Limburg from 1247 to his death. He was the son and successor of Henry IV and Ermengarde, countess of Berg....
  
  , his successor in Limburg
• Adolf
  Adolf VII of Berg
  Adolf VII of Berg was the eldest son of Henry IV, Duke of Limburg and Irmgard of Berg.In 1247, Adolf succeeded his father as Count of Berg while his brother Waleran succeeded as Duke of Limburg...
  
  , his successor in Berg.

Ancestry