Raymond IV (Catalan: Ramon, Latin: Reimundus, Raimundus) was the Count of Pallars Jussà from 1047 until his death in 1098.
[4] In 1055 Raymond married Valença, daughter of Arnau Mir de Tost, and granted him four castles as a pledge to keep the oaths he had sworn for her hand.
[9] A second agreement of 30 May 1067 saw Artau cede the monastery of Santa Maria de Lavaix to Raymond and quitclaim several villages (villae).
As a guarantee for the process, Raymond granted the potestas of the castle of Talarn[10] to two of his chief magnates, Pere Ramon I d'Erill and Mir Guirreta II de Bellera, while Artau granted the same of his castle of Salás to two of his men, Guillem Guitard de Vallferrera and Ramon Bernat.
[12] On 20 July 1094 Raymond commended (as fiefs) Llimiana and Mur to Artau II and granted him (as allods) Castellet, Claverol, and Vall d'Escós.
[7] On another front Raymond was an adversary of the Ermengol III of Urgell, who had been his father's erstwhile enemy and was his father-in-law's suzerain and frequent rival.