Christian Päffgen and Nico in a clip from La cicatrice intérieure [1972] by Philippe Garrel

Rest in peace *Christian Aaron Boulogne* (Paris, 11 August 1962 – Paris, May 2023) also known as *Ari Boulogne* and *Ari Päffgen* (credited as *Christian Päffgen* for this movie according to the IMDb).