Frederick III, Duke of Upper Lorraine

Frederick III ( 1020 – 1033) was the

Count of Bar The County of Bar, later Duchy of Bar, was a principality of the Holy Roman Empire encompassing the '' pays de Barrois'' and centred on the city of Bar-le-Duc. It was held by the House of Montbéliard from the 11th century. Part of the county, t ...

and

Duke of Upper Lorraine The rulers of Lorraine have held different posts under different governments over different regions, since its creation as the kingdom of Lotharingia by the Treaty of Prüm, in 855. The first rulers of the newly established region were kings of ...

from the death of his father, Frederick II, in 1026 or 1027 to his own death. His mother was

Matilda of Swabia Matilda of Swabia (german: Mathilde von Schwaben; – 29 July 1032), a member of the Conradine dynasty, was Duchess of Carinthia by her first marriage with Duke Conrad I and Duchess of Upper Lorraine by her second marriage to Duke Frederic ...

, daughter of

Herman II, Duke of Swabia Herman II (also ''Hermann'') (died 4 May 1003) was a member of the Conradine dynasty. He was Duke of Swabia from 997 to his death. In 1002, Herman unsuccessfully attempted to become king of Germany. Life Herman II was the son of Conrad I. There ...

. His father had been co-duke since 1019 and his grandfather, Thierry I, continued to reign until his own death in 1027 or 1028. His reign is completely obscure. Even his

regent A regent (from Latin : ruling, governing) is a person appointed to govern a state '' pro tempore'' (Latin: 'for the time being') because the monarch is a minor, absent, incapacitated or unable to discharge the powers and duties of the monarchy ...

is unknown. He died young and his county of Bar passed to his sister Sophie while Lorraine was given to Gothelo I,

Duke of Lower Lorraine The rulers of Lorraine have held different posts under different governments over different regions, since its creation as the kingdom of Lotharingia by the Treaty of Prüm, in 855. The first rulers of the newly established region were kings of ...

. House of Bar Counts of Bar Dukes of Upper Lorraine Rulers who died as children Medieval child rulers 1020s births 1033 deaths Year of birth uncertain {{Europe-noble-stub