Louis III, Count of Looz (died 15 May 1243), also known as Ludwig (Latin Lodevicus) was Count of Loon and of Rieneck. He was the son of Gerard, Count of Rieneck (died 1216), and Cunegonde von Zimmern, who was in turn the son of another Count Gerard who was also count of both Rieneck and Loon (died 1191).
Upon the death of his father in 1216, and his uncles Louis II, Count of Loon, and Henry, Count of Looz, both dying in 1218, it was another uncle Arnold III, Count of Looz, who became count of both Loon and Rieneck, while Louis III became Burgrave of Mainz. Arnold III however died childless, and Louis subsequently also became count in both Rieneck, now in Germany, and Loon, now in Belgium.
Loon eventually became a county of Louis III's younger brother Arnold IV, Count of Loon, and the division of the two counties became permanent. Louis III had children and his descendants continued to be counts of Rieneck into the 16th century.
Vaes (pp. 149–150) reports that Louis married Adelheid of Henneburg and they had the following children:
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The County of Loon was a county in the Holy Roman Empire, which corresponded approximately with the Belgian province of Limburg. It was named after the original seat of its count, Loon, which is today called Borgloon. During the middle ages the counts moved their court to a more central position in Kuringen, which is today a part of Hasselt, the modern capital of the region.
Louis II was count of Loon between the end of the 12th century to 1218. He was the son of Gerard, Count of Looz, and Adelaide of Gelderland, daughter of Henry I, Count of Guelders, and Agnes of Arnstein, daughter of Louis III of Arnstein. He also claimed to be the legitimate Count of Holland during the Loon War (1203–1206).
The County of Metz originated from the frankish Metzgau. In the second half of the 9th century it went to the Gerhardiner (de), which held at the same time the County of Paris.
Giselbert van Loon is the first definitely known count of the County of Loon, a territory which, at least in later times, roughly corresponded to the modern Belgian province of Limburg, and generations later became a lordship directly under the Prince-bishopric of Liège. Very little is known about him except that he had two brothers, one of whom, Bishop Balderic II of Liège, is much better attested in historical records.
Arnold IV of Loon (Looz) (died between November 1272 and October 1273; most likely on February 22, 1273), was Count of Loon from 1227 to 1273 and Count of Chiny (as Arnold II) from 1228 to 1268. He was the son of Gérard III, Count of Rieneck and Cunegonde von Zimmern.
Louis I was the Count of Loon, now in modern Belgium, and Burgrave of Mainz, in Germany. He inherited these offices from his father. He also established the County of Rieneck apparently based upon the Burgrave's lands.
The counts of Chiny were part of the nobility of Lotharingia that ruled from the 9th to the 14th century in what is now part of Belgium.
Joan was the Countess of Chiny. Joan was the daughter of Louis IV, Count of Chiny, and Matilda of Avesnes, and became ruler of the county upon her father’s death on 7 October 1226. She married Arnold IV, Count of Loon, son of Gerard III, Count of Rieneck, and Kunigunde von Zimmern, in 1228, whereupon he assumed the role of Count of Chiny.
Arnold V de Looz, was Count of Loon from 1279 to 1323 and Count of Chiny from 1299 to 1310. He was the son of John I, Count of Looz and Mathilde Jülich.
Diederik of Heinsberg, Count of Loon and Count of Chiny (1336-1361), was the son of Godfrey II, Lord of Heinsberg, and Matilda.
Godfrey de Heinsberg, Lord of Daelenbroeck, Count of Looz and Count of Chiny (1361–1362), son of John of Heinsberg, Lord of Daelenbroeck.
Arnold VI de Rumigny, Count of Looz and Count of Chiny (1362–1364), son of William of Oreye, Lord of Rumigny, and Jeanne de Looz, daughter of Arnold V, Count of Loon and Chiny, and, Marguerite Vianden, Lady of Perwez and Grimbergen.
Arnold I, Count of Loon (Looz) from about 1079, son of Emmo, Count of Loon, and Suanhildis, daughter of Dirk III, Count of Holland, and his wife Othelandis.
Arnold II, Count of Loon, son of Arnold I, Count of Loon, and Agnes von Mainz, daughter of Gerhard I, Count of Rieneck, and Helwig von Bliescastel. He is distinguished from his father of the same name by historians who note records for counts named Arnold or Arnulf between 1179 and 1141. The first Arnold must have died between 1125 when Count Arnold appears in a record with his son also named Arnold, and 1135, when a new Count Arnold appears with his own son and successor Louis.
Count Gerard of Loon, was son and successor of Louis I, Count of Loon, and Agnes of Metz. He was count of Loon and of Rieneck. Because of a widespread misunderstanding concerning a document from 1101, some generations earlier, he is sometimes wrongly referred to as the second Gerard in this dynasty, "Gerard II".
Henry, Count of Looz and Count of Duras, son of Gérard II, Count of Looz, and Adelaide of Gelderland, daughter of Henry I, Count of Guelders, and Agnes of Arnstein, daughter of Louis III of Arnstein.
Arnold III, Count of Looz and Count of Rieneck, son of Gérard II, Count of Looz, and Adelaide of Gelderland, daughter of Henry I, Count of Guelders, and Agnes of Arnstein, daughter of Louis III of Arnstein.
Gerard, Count of Rieneck, son of Gerard, Count of Loon, and Adelaide of Gelderland, daughter of Henry I, Count of Guelders, and Agnes of Arnstein, daughter of Louis III of Arnstein.
Count Otto of Duras was a Count of Duras, and advocatus of the Abbey of St Truiden. Duras and St Truiden are in the modern province of Belgian Limburg. His parents were Count Giselbert of Duras and his wife Gertrud.
John II of Loon, Lord of Jülich, Heinsberg and Löwenberg, son of Godfrey de Heinsberg, Count of Looz, and Philippa of Jülich, daughter of William V, Duke of Jülich, and Joanna of Hainaut. Although John was the first son of Godfrey, he did not inherit the countship of Looz, the title instead going to Arnold of Rumingy.
