Gerard, Count of Rieneck, also Count of Rieneck 1221 - 1243, renounced Loon in favour of his younger brother. Arnold IV (1227–1273), another grandson of Gerard and son of Count Gerard of Rieneck, married Joanna, daughter of Louis IV the Younger, Count of Chiny, also Count of Chiny (as Arnold II) John I (1273–1279), son, married Matilda, daughter of William IV, Count of Jülich, secondly Isabelle de Condé Arnold V (1279–1323), son, also Count of Chiny 1299 - 1313, married Margaret of Vianden Louis IV (1323–1336), son, also Count of Chiny (as Louis VI) since 1313, married Margaret, daughter of Duke Theobald II of Lorraine Male line extinct, succeeded by: Theodoric (or Diederik, or Thierry), (1336–1361) son of Gottfried of Sponheim, Lord of Heinsberg and Mechtild of Loon, sister of Count Louis IV, also Count of Chiny and Lord of Heinsberg. Gottfried (1361–1362), nephew, son of John of Heinsberg, married Philippa, daughter of Count William V of Jülich, also Count of Chiny and Lord of Heinsberg, sold the comital title to: Arnold VI of Rumigny (1362–1366), also Count of Chiny (as Arnold IV), claimant, renounced in favour of Liege, Notes References Limburg (region) Loon Loon 1795 disestablishments Hasselt