Englebert IV de Brienne was born 1025 in Brienne-le-Château to Englebert III de Brienne (980-1035) and Mainfreda de Sens (999-1059) and died 1056 of unspecified causes. He married Pétronille de Joigny (1020-c1067) 1045 JL . Charlemagne (747-814), Charlemagne (747-814)/s.
Englebert married his half-sister.
|Offspring of Englebert IV de Brienne and Pétronille de Joigny (1020-c1067)|
|Gauthier I de Brienne (1045-1090)||1045 Brienne-le-Château||1090||Eustachie de Tonnerre et de Bar-sur-Seine (1040-1085)|