Petar Omčikus | Petar II Petrović-Njegoš | Petar Gudev | Petar Kočić | Petar Dobrović | Petar Dachev | Petar Dobrovic | Petar Beron | Sveti Petar u Šumi | Sveti Petar Orehovec | Sveti Petar Čvrstec | Sveti Petar | Petar Zrinski | Petar Stojkoviḱ | Petar Radev | Petar Mrkonjić | Petar I Petrović-Njegoš | Petar Drapšin | Petar Brzica | Petar Beron (politician) |
He has authored a number of historical contributions to Croatian history and politicians of the 19th and 20th century (Miho Klaić, Ivan Kukuljević Sakcinski, Petar Preradović, Stjepan Radić).