Roger Deslaur orDesllor, aknight fromRoussillon in the service ofWalter V of Brienne,Duke of Athens, was one of the few men to survive the bloodyBattle of Halmyros on 15 March 1311. Captured by theCatalan Company, he accepted the post ofrector andmarshal of the Company (rector et marescalcus universitatis) afterBoniface of Verona declined it.
Deslaur was the agent through which Walter had first hired the Catalan Company for six months in 1310. Deslaur remained with Walter even after he tried to expel the Catalans. Following Halmyros, the Catalans granted Deslaur the fief ofSalona (called "La Sola" byRamon Muntaner) and the hand in marriage of the widow of the lord of Salona,Thomas III of Autremencourt. Deslaur, however, proved ineffective as a defender of the Catalan conquests. Menaced by theVenetian colony ofNegroponte and theFrankishMorea, he negotiated the handover of suzerainty toFrederick II of Sicily, who appointed his young sonManfred duke (1312). Frederick sentBerenguer Estañol to act as Manfred'svicar general and Deslaur stepped down from his post as leader of the Company and duke of Athens, retiring to his castle at Salona, which he eitherescheated, or he was forced to relinquish, toAlfonso Fadrique around 1318.
| Preceded by | Duke of Athens 1311–1312 | Succeeded by |
| Preceded by | Lord of Salona 1311–1318 | Succeeded byas Count of Salona |
| De la Roche dynasty(1205–1308) | .svg)    | |
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| Brienne–Enghien dynasty(1308–1311/94)§ | ||
| Catalan Domination(1311–1388) | ||
| Acciaioli dynasty(1388–1395, 1402–1458)† | ||
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