Louis Aleman (c. 1390 – September 16, 1450) was a French cardinal.
He was born of a noble family at the castle of Arbent near Bugey. A relative was the Papal Chamberlain. He was successively bishop of Maguelonne (1418), archbishop of Arles (1423) and Cardinal Priest of S. Cecilia (1426).
He was a prominent member of the council of Basel, and, together with Cardinal Julian Cesarini, led the party which maintained the supremacy of general councils over the pope's authority.
In 1440 Aleman obtained the support of the emperor Sigismund and of the duke of Milan to his views, and proclaiming the deposition of Pope Eugene IV, placed the tiara upon the head of Amadeus VIII, Duke of Savoy (henceforward known as Antipope Felix V).
Eugene retorted by excommunicating the antipope and depriving Aleman of all his ecclesiastical dignities. In order to make an end of the schism, Felix V finally abdicated on Aleman's advice, and Nicholas V, who had succeeded in 1447, restored the cardinal to all his honours and employed him as legate to Germany in 1449.
On his return he retired to his diocese of Arles, where he devoted himself zealously to the instruction of his people. He died on September 16, 1450, and was beatified by Pope Clement VII in 1527.
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed (1911). Encyclopædia Britannica (Eleventh ed.). Cambridge University Press.
- See U. Chevalier, Repert. des sources hist. (Paris, 1905), p. 130.
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