• Born: Between 948 and 955, Roucy, Aisne, Picardy, France
• Died: 19 Apr 991-1000, Reims, Champagne-Ardenne, France

  Research Notes:

Maybe died in 997.

The Acta Concilii Remensis ad Sanctum Basolum (dated to 991) quotes Bruno Bishop of Langres referring to "unicum fratrem meum comitem Gislebertum…".

Comte de Roucy. “...Gilbertus comes confirmavi...” subscribed the charter dated 26 May 974 under which Lothaire King of the Franks confirmed the possessions of the monastery of Saint-Thierry de Reims.

Vicomte de Reims: Varin refers to a manuscript which records that “comte...Gislebert fils de Renaud comte de Reims et de Roucy” donated “la moitié de la vicomté [de Reims]...à l’abbaye de Saint-Rémi” while retaining the other half of the vicomté.

The necrology of Reims Cathedral records the death "XIII Kal Mai" of "Gisbertus comes". ¹