Pepin III, Count of Vermandois
Pepin III, Count of Vermandois( also known as Pepin II, Count of Senlis; French:" Pépin")( c. 846 – 893) was a Frankish noble; the Count of Senlis and Count of Vermandois( 850 – 893); Lord of Valois( 877 – 886), and later Count of Valois( 886 – 893).
He was a son of Pepin, Count of Vermandois and Valois and thus a grandson of Bernard of Italy, who was himself a grandson of Charlemagne.
The brothers of Pepin III were Herbert I, Count of Vermandois and Bernard II, Count of Laon.
Pepin III of Vermandois's wife is unknown; their son was:
Adalbert I, Count of Vermandois
Adalbert I of Vermandois(" the Pious"), in 946 he succeeded his father as Count of Vermandois.
Otto, Count of Vermandois
Otto (or Eudes) of Vermandois (or Vermicelli) (29 August 979 – 25 May 1045), Count of Vermandois, was the son of Herbert III, Count of Vermandois and Ermengarde of Bar-sur-Seine.
He succeeded his brother, Adalbert II as count of Vermandois in 1015.
Otto donated property to Notre-Dame de Homblières by charter.
Herbert III, Count of Vermandois
Herbert III of Vermandois (953–1015), Count of Vermandois, was the son of Adalbert I of Vermandois and Gerberge of Lorraine.
Herbert II, Count of Vermandois
Herbert II( died 23 February 943), Count of Vermandois, Count of Meaux, and Count of Soissons.
He was the first to exercise power over the territory that became the province of Champagne.
Elisabeth, Countess of Vermandois
" Not to be confused with Elizabeth of Vermandois, Countess of Leicester" Elisabeth of Vermandois also known as Isabelle Mabile or Isabelle de Vermandois
( 1143 – Arras 28 March 1183) was ruling Countess of Vermandois from 1168 to 1182, and also Countess of Flanders by marriage to Philip I, Count of Flanders.
She was the eldest daughter of Ralph I, Count of Vermandois and his second spouse Petronilla of Aquitaine.
Hubba bint Hulail
Hubba bint Hulail was the grandmother of Hashim ibn' Abd Manaf, thus the great- great- great- grandmother of the Islamic" Nabī"( Prophet) Muhammad ibn Abdullah.
Herbert IV, Count of Vermandois
Herbert IV of Vermandois( 1028–1080), Count of Vermandois, was the son of Otto of Vermandois and Parvie( Pavia or Patia).
Odo I of Furneaux
Odo l of Furneaux( Eudes de Furneaux)( 1040- 1086) was a Frankish noble from Herbertien dynasty a branch of Carolingian dynasty.
He was Count of Furneaux, son of Otto, Count of Vermandois and his wife Pavia( or Patia).
He was married to Bertha, whose family and relatives remain unknown.
Stephen I, Count of Troyes
Stephen I of Vermandois( died 1020) was the seventh Count of Meaux, in the Champagne region of modern -day France, after his father Herbert of Vermandois.
He died without issue.
The title of Count of Meaux passed to Odo II of Blois.

Question: Who is Otto, Count Of Vermandois's paternal grandmother?