Photo 1 : Norwid 1861, Domaine public - Photos 2 et 3 : Wikimedia Commons / Mu — CC BY-SA 3.0 - Photo 4 : Aleksandra Figurska — https://web.archive.org/web/20211004193719/https://www.gov.pl/web/kulturaisport/wiceminister-jaroslaw-sellin-zlozyl-wieniec-na-grobie-cypriana-kamila-norwida-w-montmorency CC BY 3.0