He was also the Count of Ribagorza de iure uxoris ("by his marriage").
Suñer succeeded his father and his uncle, Isarn, Count of Pallars.
Suñer was first married to Ermengarda/Ermentruda, his sister-in-law (the former wife of Borrell).
Suñer and his sister-in-law were the parents of two sons – Raymond III of Pallars Jussà[1] and William II of Pallars Sobirà[2] – and a daughter, Ermengarda.
Sunyer's second wife was Countess Toda of Ribagorza, daughter of his cousin Raymond II, Count of Ribagorza.