Frederick I
count of Malta
Coat of arms of Aragonese Sicily
Duke of Athens & Neopatria
Reign	1348 - 1355
Predecessor	John, Duke of Randazzo
Successor	Frederick III of Sicily
Died	11 July 1355
Buried	Sant' Agatha in Palermo
Noble family	of Barcelona
Father	John, Duke of Randazzo
Mother	Cesarea of Castalnasetta

Frederick I (died 11 July 1355) was the Duke of Athens and Neopatria from 1348 to his death, also the Count of Malta. He succeeded his father John, Duke of Randazzo, in Greece after his father died of the Black Plague, but he too died of the same plague seven years later.

Frederick was an absentee lord throughout his reign, although his regent Blasco II of Alagona, urged him to visit his duchy in 1349. Frederick appointed Ramón Bernardi as his vicar general there, but the latter was opposed by the baronage, who requested his removal from power just before the duke died. Frederick died young and was buried in Sant'Agata in Palermo.

References

• Setton, Kenneth M.; Hazard, Harry W., eds. (1975). A History of the Crusades, Volume III: The Fourteenth and Fifteenth Centuries. Madison and London: University of Wisconsin Press. ISBN 0-299-06670-3.
• Setton, Kenneth M. Catalan Domination of Athens 1311–1380. Revised edition. Variorum: London, 1975.