Pope Boniface IX ( Latin : Bonifatius IX , ; c. 1350 - 1 October 1404 ) , born Piero Tomacelli , was Pope from 2 November 1389 to his death in 1404 .
Pope Boniface IX ( Latin : Bonifacius Nonus ; 1350 - 1 October 1404 ) , born Piero Tomacelli , was an Italian cleric of the Roman Catholic Church and the 204th Pope from 1389 until his death in 1404 .