Reginald III (french: Renaud; c. 1087 – 1148), son of Stephen I and Beatrice of Lorraine, was the

count of Burgundy This is a list of the counts of Burgundy, i.e., of the region known as Franche-Comté, not to be confused with the Duchy of Burgundy, from 982 to 1678. House of Ivrea (982–1190) House of Hohenstaufen (1190–1231) House of Andechs (12 ...

between 1127 and 1148. Previously, he had been the

count of Mâcon Count (feminine: countess) is a historical title of nobility in certain European countries, varying in relative status, generally of middling rank in the hierarchy of nobility. Pine, L. G. ''Titles: How the King Became His Majesty''. New York: ...

since his father's death in 1102, with his brother, William of Vienne. His mother, Beatrice of Lorraine, was the daughter of Gerhard, Duke or Lorraine.

Pope Callixtus II Pope Callixtus II or Callistus II ( – 13 December 1124), born Guy of Burgundy, was head of the Catholic Church and ruler of the Papal States from 1 February 1119 to his death in 1124. His pontificate was shaped by the Investiture Controversy, ...

was his paternal uncle. He proclaimed independence from

Emperor Lothair III Lothair III, sometimes numbered Lothair II and also known as Lothair of Supplinburg (1075 – 4 December 1137), was Holy Roman Emperor from 1133 until his death. He was appointed Duke of Saxony in 1106 and elected King of Germany in 1125 before b ...

, but was defeated by King

Conrad III of Germany Conrad III (german: Konrad; it, Corrado; 1093 or 1094 – 15 February 1152) of the Hohenstaufen dynasty was from 1116 to 1120 Duke of Franconia, from 1127 to 1135 anti-king of his predecessor Lothair III, and from 1138 until his death in 1152 ...

and forced to relinquish all his lands east of the Jura. The name of the region

Franche-Comté Franche-Comté (, ; ; Frainc-Comtou: ''Fraintche-Comtè''; frp, Franche-Comtât; also german: Freigrafschaft; es, Franco Condado; all ) is a cultural and historical region of eastern France. It is composed of the modern departments of Doubs, ...

is derived from his title, ''franc-compte'', meaning "free count". About 1130, Reginald married Agatha, daughter of Duke

Simon I of Lorraine Simon I (1076 – 13 or 14 January 1139) was the duke of Lorraine from 1115 to his death, the eldest son and successor of Theodoric II, Duke of Lorraine, Theodoric II and Hedwig of Formbach and a half-brother of Emperor Lothair III. Continui ...

. They had a daughter, Beatrice. In 1148, Reginald was traveling in France when he fell ill with multiple illnesses.Chepmell, Havilland Le Mesurier. ''A short course of history'', Volume 2 London. Whittaker and Co., 1857, p. 47
/ref> He died so suddenly that he could not even appoint a regent for his young daughter, Beatrice I, who succeeded him.

References

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* * * * {{DEFAULTSORT:Renaud 03, Duke of Burgundy 1090s births 1148 deaths Anscarids Counts of Burgundy Counts of Mâcon