Personent hodie is a Christmas carol originally published in the 1582 Finnish song book Piae Cantiones, a volume of 74 Medieval songs with Latin texts collected by Jaakko Suomalainen, a Swedish Lutheran cleric, and published by T.P. Rutha. The song book had its origins in the libraries of cathedral song schools, whose repertory had strong links with medieval Prague, where clerical students from Finland and Sweden had studied for generations. A melody found in a 1360 manuscript from the nearby Bavarian city of Moosburg in Germany is highly similar, and it is from this manuscript that the song is usually dated.