Gauthier Ier de Brienne

• 
• Born in 1045
• Deceased in 1090, at the approximate age of 44 years

Parents

• Englebert de Brienne, alias Englebert IV de Brienne ( - aft. 1055), comte de Brienne
• Ne N

Family

• Married with Eustachie de Tonnerre (c. 1040 - 1085), comtesse de Bar-sur-Seine, issuing
  • Érard (c. 1070 - )
  • Milon II