Johannes Ciconia (c. 1335 or c. 1370–1412) was a late mediaeval composer and music theorist. He has possibly been conflated with his father of the same name in some biographical accounts, hence the uncertainty over his date of birth. All the composer's works are believed to date from later than about 1390. Ciconia was born in Liège. A Johannes Ciconia, probably the composer's father, worked in Avignon in 1350 as a clerk for the wife of the nephew of Pope Clement VI. In 1358 this Johannes Ciconia settled in Italy, working in Padua.