Louis Aleman (c. February 1390 – 16 September 1450) was a French Roman Catholic cardinal and a professed member of the now-suppressed Canons Regular of Saint John Baptist.
[2][3] Aleman served as the Bishop of Maguelonne from 1418 until his archepiscopal elevation at which point he was later named a cardinal.
But he later convinced the antipope to abdicate as a means of ending the Western Schism at which stage Aleman was restored to the cardinalate and returned to full communion with the Roman see under Pope Nicholas V.[2][3] He has often been dubbed as the "Cardinal of Arles".
[2] Aleman served as the governor of the Romagna since 1424 and had to face the ongoing struggles between the Guelphs and the Ghibellines in Bologna.
Antipope Felix V made him the legate to the Diet of Frankfurt to the court of Emperor Friedrich III.
In order to make an end of the schism the former cardinal advised Felix V to abdicate at which stage Pope Nicholas V restored the cardinal to all his honors and appointed him as a papal legate to the German kingdom] in 1449; his full restoration was on 19 December 1449.
[1] He was granted back his titular church as well and from that moment until his death served as the Protopriest of the College of Cardinals.
[2] His beatification was approved and celebrated on 9 April 1527 after Pope Clement VII confirmed that there had been a longstanding and popular cultus (otherwise known as an enduring public veneration) of the late cardinal.