Konstanty Ildefons Gałczyński, "Ballad of Two Sisters"

 is a datashard in Cyberpunk 2077. It contains a fragment of a ballad written by a real-world Polish poet Konstanty Ildefons Gałczyński.

Transcript
There once were two sisters: Night and Death, Death large, and Night small, Night had the beauty of dreams, while Death, Death was most lovely of all -

Hey nonny nonny, hey nonny nonny! Death was most lovely of all.

Location
This shard can be found during Gig: Small Man, Big Evil on a table in the room with a red leather couch.