"Sacris solemniis" is a hymn written by St. Thomas Aquinas (1225–1274) for the feast of Corpus Christi (also known as the Solemnity of the Holy Body and Blood of Christ).
The strophe of Sacris solemniis that begins with the words "Panis angelicus" (bread of angels) has often been set to music separately from the rest of the hymn.
It appears about 1768 in the iberian musical form Vilancete/Villancico at Francesc Morera's "Si el grano divino".
[1] Most famously, in 1872 César Franck set this strophe for voice (tenor), harp, cello, and organ, and incorporated it into his Messe à trois voix Opus 12.
[2] In the 4th episode of the first season of the 2022 television show, Night Sky the character Jude sings the first verse of Sacris Solemniis at a karaoke bar.