Roger Deslaur or Desllor, an almogàver from Roussillon in the service of Walter V of Brienne, Duke of Athens, was one of the few knights to survive the bloody Battle of Halmyros on 15 March 1311. Captured by the Catalan Company, he accepted the post of rector and marshal of the Company (rector et marescalcus universitatis) after Boniface 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 of Salona (called "La Sola" by Ramon 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 the Venetian colony of Negroponte and the Frankish Morea, he negotiated the handover of suzerainty to Frederick II of Sicily, who appointed his young son Manfred duke (1312). Frederick sent Berenguer Estañol to act as Manfred's vicar 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 either escheated, or he was forced to relinquish, to Alfonso Fadrique around 1318.
- Setton, Kenneth M. (general editor) A History of the Crusades: Volume III — The Fourteenth and Fifteenth Centuries. Harry W. Hazard, editor. University of Wisconsin Press: Madison, 1975.
- Setton, Kenneth M. Catalan Domination of Athens 1311–1380. Revised edition. Variorum: London, 1975.
Walter V of Brienne
|Duke of Athens
Thomas III d'Autremencourt
|Lord of Salona
as Count of Salona
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