Louis Fadrique (also Luis or Lluís Frederic d'Aragó; died 1382) a Catalan nobleman who was Count of Salona, as well as lord of various other towns in Central Greece from ca.

[4] With the support of most of the Catalan feudatories, rattled following the capture of Megara by the Florentine adventurer Nerio I Acciaioli, in April 1375, Louis obtained from Frederick III his appointment as vicar-general of the twin duchy of Athens and Neopatras.

[9] At the same time, the Catalan duchies faced a new and dangerous opponent: the mercenary Navarrese Company, which in spring 1379 invaded Boeotia from the Morea—with the permission, if not connivance, of their ally Nerio Acciaioli, who controlled the region linking the Morea with Central Greece.

Aside from Acciaioli, the latter also enjoyed the support of the Knights Hospitaller, and the soon allied themselves with two of the Catalans' neighbours, the Duke of the Archipelago Nicholas III dalle Carceri, and the Marquis of Bodonitsa, Francis Zorzi.

[12] In early autumn 1381, Louis was replaced as vicar-general by Philip Dalmau, Viscount of Rocaberti, who had already been appointed in 1379 but had not yet arrived in Greece to take up his position.

He was succeeded in Salona by his widow, while King Peter IV gave his daughter Maria possession of Siderokastron for life, on the condition that she married Bernaduch.