Through Wikipedia:

Mori et al. (2025) confirm that the AC12 cranium from the Upper #Paleolithic Arene Candide Cave site (Italy), dated ca. 12,620–12,190 Cal BP, represents the oldest human skull with evidence of artificial modification from Europe reported to date.

Mori, T., Sparacello, V.S., Riga, A. et al. Early European evidence of artificial cranial modification from the Italian Late Upper Palaeolithic Arene Candide Cave. Sci Rep 15, 27792 (2025). https://doi.org/10.1038/s41598-025-13561-8