Roman Ingarden

Roman Witold Ingarden (/ˈroʊmən inˈɡɑːrdən/; February 5, 1893 – June 14, 1970) was a Polish philosopher who worked in phenomenology, ontology and aesthetics.

Before World War II, Ingarden published his works mainly in the German language. During the war, he switched to Polish, and as a result his major works in ontology went largely unnoticed by the wider world philosophical community.