His daughter Alix succeeded in Châteaudun but record about succession in Nesle is not present.
Raoul married firstly in c.1268 Alix (Yolande) of Dreux (c. 1255 – c. 1293), Viscountess of Châteaudun, daughter of Robert of Dreux (1217–c. 1264), and Clemence, Viscountess of Châteaudun. Raoul and Alix had three daughters:
Alix (c. 1275 – c. 1330), Viscountess of Châteaudun, Lady of Mondoubleau. Called Alix of Clermont, Nesle or Beaumont.
Jeanne (c. 1290 – 1342), married to Gérard van Diest(de) (1275–1333), Châtelain (Burggraf) of Antwerp and Otto of Cuijk (de) (1270–1350).
Marie of Dampierre (c. 1290 – 1350), Viscountess of Châteaudun, married 1317 to Robert VII of Auvergne(fr) (1280 – c. 1326) and had seven known children, including Jean I (fr) (d. 1386), Count of Auvergne, Boulogne and Montfort.
Secondly, in 1312 Alix married John I of Chalon-Arlay, Sire of Salins (c. 1258–1315), and they had one daughter:
Catherine of Châlon (d.1355), married 1342 to Thiébaud (Thibaut) V Seigneur (lord) of Neuchâtel-Burgundy (fr) (c. 1317–1366), being a widower, and bore four children.
Isabelle (d. a. August 1324), Lady of Semblançay, married Hugues of l'Archévêque, Seigneur of Montfort-le-Rotrou (d. b. August 1324), son of Guillaume VI of l'Archévêque (fr) (d. 1315).
In January 1296 Raoul married secondly Isabelle of Hainaut (d. c. 1305), daughter of John II, Count of Holland and Philippa of Luxembourg. They had no recorded children. Some genealogists attribute Isabelle and Béatrix to this second marriage.
There are multiple issues with the genealogy, discussed in "Simon II of Clermont".
More information Ancestors of Raoul II of Clermont ...
Ancestors of Raoul II of Clermont
Renaud II, Count of Clermont-en-Beauvaisis (fr) (c. 1075 – b. 1162)
Simon I, Seigneur of Ailly-sur-Noye (fr) (c. 1134 – a. 1187)
His father had a brother called Raoul (d. a. 1243), sometimes numbered II, causing confusion about the parentage of Raoul's children, as either somehow might come into question. Having Raoul's uncle as No. II and his nephew as Raoul IV, makes himself No. III. There are other issues with the genealogy, as discussed in the article about Simon II