Hugh I, Count of Empúries
Hugh I (Spanish "Hugo", Catalan "Hug") (c. 965 – 1040), Count of Empúries (Ampurias) from 991, was the son of Gausfred I and his first wife, Ava, daughter of Raymond II of Rouergue.
By the testament of his father, dated 969, Hugh was to receive the county of Ampurias while his brother Giselbert received that of Roussillon.
The division took place on the death of Gausfred, but on the death of Giselbert in 1014, Hugh tried to reunify the counties and invaded the county of his nephew, Gausfred II.
Gausfred obtained the help of Bernard I of Besalú and the Abbot Oliva and the two relations arrived a peace in 1020.
Hugh made a career of harassing his neighbours.
Ermesinde of Carcassonne, the widow of Ramon Borrell, Count of Barcelona, reclaimed the allod of Ullastrell, which had been sold by Borrell and subsequently invaded by Hugh.
In 1019, a judicial synod in Girona, presided over by Oliva and Bernard, devolved the allod to Ermesinda.
At about this time, Hugh made enemies of the church by seizing the monastery of San Salvador de Verdera.
Enguerrand I, Count of Ponthieu
Enguerrand I was the son of Hugh I of Ponthieu and Gisela, daughter of Hugh Capet.
Hervé I, Count of Perche
Hervé I( died after 25 June 955), Count of Perche and Mortagne.
Hervé appears several times between 941 and 946 in the entourage of Hugh the Great and is likely" Hervei Comiti Mauritianae" cited in a transaction dated June 24, 955.
According to Hervé I of Mortagne, sourced by the work of Settipani, Hervé was either the son or son-in- law of Hugh I, Count of Maine.
Hervé married Melisende( possibly a daughter of Hugh I).
They had a number of children: Hervé I was succeeded either by his son Hervé II or Fulcois, the husband of his granddaughter Melissende.
Hugh II, Count of Maine
Hugh II( 920- before 992), Count of Maine, son of Hugh I, Count of Maine, and an unknown mother, probably a daughter of Gauzlin II, Count of Maine.
He was, like his father, a vassal of his uncle Hugh the Great.
After the death of Hugh the Great, Hugh II allied himself Fulk II the Good, Count of Anjou, and Theobald the Trickster, Count of Blois.
Hugh later joined Theobald ’s son Odo against Seinfroy, Bishop of Le Mans.
Hugh and Odo had to flee and seek refuge with Bouchard I, Count of Vendôme, in the areas that form the Bas- Vendômois.
In 939 he fought alongside Alan II, Duke of Brittany and Judicael Berengar against the Vikings at the Battle of Trans- la- Forêt.
Hugh had by his unknown wife: Hugh III, Count of Maine, Fulk of Maine,( d. after 992) and Herbert “ Baco ” of Maine( d. after 1046), regent of Hugh IV, Count of Maine.
Hugh was succeeded as Count of Maine by his son Hugh III.
Lambert I, Count of Louvain
Lambert I of Louvain nicknamed" The Bearded"( born in Louvain, Duchy of Lotharingia, East Francia c. 950, died in Florennes, County of Namur, Duchy of Lower Lorraine, Holy Roman Empire on 12 September 1015) was the first Count of Louvain in 1003.
He was killed by Godfrey II, Duke of Lower Lorraine in battle for Godfrey's claim of Count of Verdun.
He was the son of Reginar III, Count of Hainaut and Adela d' Eguisheim, daughter of Hugh V, Count of Eguisheim.
His brother was Reginar IV, Count of Mons.
He was the husband of Gerberga of Lower Lorraine, and father of:
Sunyer I, Count of Empúries
Sunyer I was count of Empúries and Roussillon( with the" pagus" of Perelada) from 834 to 841.
He was the son of Count Bell ó I of Carcassonne.
Sunyer I was deposed in 841 due to a new policy of the Frankish Emperor, he died in 848.
His eldest son, Sunyer II, was later a count of Empúries and Roussillon( with Perelada) and another son, Delà, was an associate count of his brother.
Alberic I, Count of Dammartin
Alberic( Aubry) de Mello( d. after 1162), Count of Dammartin, based on his marriage to Adela, daughter of Hugh I, Count of Dammartin.
It is believed that Aubry was the son of Gilbert de Mello and Richilde de Clermont, daughter of Hugh, Count of Clermont- en- Beauvais,( d. 1101) and Margaret, daughter of Hilduin IV, Count of Roucy
Dela
Dela( d. c. 894), count of Empúries( 862–894), was the son of Sunyer I of Empúries, whom he succeeded along with his brother, Sunyer II of Empúries, in 862.
The brothers tried to conquer the county of Girona, but their relative, Wilfred the Hairy, halted their advances.
He married Sixilona, daughter of Sunifred I, Count of Barcelona, and they had the following children:
Renaud II, Count of Clermont-en-Beauvaisis
Renaud II of Clermont(" Renaud/ Rainald II de Clermont"; 1075 – 1152), son of Hugh I, Count of Clermont- en- Beauvaisis, and Marguerite de Roucy( daughter of Hilduin IV, Count of Montdidier).
Renaud became Count of Clermont- en- Beauvaisis upon his father ’s death in 1101.
Gausfred I
Gausfred I (died 991) was the count of Empúries and Rosselló from 931 until his death.
He was the son and successor of Gausbert.
He spent his whole life consolidating his authority in his counties, but he divided the realm amongst his sons.
By his testament of 989, Empúries and Perelada went to Hugh and Roussillon went to Giselbert.
He married firstly Ava Guisla, probably the daughter of Raymond II, count of Rouergue.
By her he had:
He married secondly Sibylla, with whom he had no children.

Question: Who is Hugh I, Count Of Empúries's paternal grandfather?