Zygmunt Władysław Vetulani is a Polish mathematician and computer scientist who specializes in language engineering and artificial intelligence, professor of technical sciences and professor at the Adam Mickiewicz University where he is also Head of the Department of Information Linguistics and Artificial Intelligence.

Tadeusz Bolesław Vetulani was a Polish agriculturalist and biologist, associate professor of Adam Mickiewicz University in animal husbandry. He was a pioneer of biodiversity research in Poland and conducted notable research into forest tarpan and the Polish koniks, launching restoration and breeding schemes.