Petras Simonas Gedgaudas (Polish: Piotr Senko Giedygołdowicz; died in 1451) was a Lithuanian noble and diplomat. He briefly was a regent of Polotsk (equivalent to the later Voivode of Polotsk) in 1440, regent of Smolensk (Voivode of Smolensk) in 1447–1451, and castellan of Vilnius in 1451.[1]
petra
was invoked but never defined (see the help page).