Between September 1939 and July 1941, the Soviets arrested and deported nineteen Polish faculty and ex-faculty of the University of Stefan Batory, of who nine perished: Professors Stanisław Cywinski, Władysław Marian Jakowicki, Jan Kempisty, Józef Marcinkiewicz, Tadeusz Kolaczyński, Piotr Oficjalski, Włodzimierz Godłowski, Konstanty Pietkiewicz, and Konstanty Sokol-Sokolowski, the last five victims of the Katyn massacre.

Piotr Stefan Wandycz wrote that the " liberum veto had become the sinister symbol of old Polish anarchy.

Piotr Stefan Wandycz wrote that the " liberum veto had become the sinister symbol of old Polish anarchy.

* Piotr Stefan Wandycz.

* Piotr Stefan Wandycz, The twilight of French eastern alliances.

The Silesian String Quartet performed with other eminent artists such as: Dmitri Ashkenazy, Andrzej Bauer, Eduard Brunner, Bruno Canino, Martin Frost, Stefan Kamasa, Jadwiga Kotnowska, Eugeniusz Knapik, Karri Krikku, Waldemar Malicki, Jerzy Marchwiński, Janusz Olejniczak, Piotr Pławner, Ewa Pobłocka, Ewa Podleś, Jadwiga Rappe, Hokan Rosengren, Jan Stanienda, Hary Sparnay, Wojciech Świtała, Marie-Pierre Langlamet, Krystian Zimerman.

* Michael Alfred Peszke, The Polish Underground Army, the Western Allies, and the Failure of Strategic Unity in World War II, foreword by Piotr S. Wandycz, Jefferson, NC, McFarland & Company, 2005, ISBN 978-0-7864-2009-4.

* Piotr Wandycz, General Weygand and the Battle of Warsaw, Journal of Central European Affairs, 1960

* Wandycz, Piotr, " General Weygand and the Battle of Warsaw ", Journal of Central European Affairs ", 1960.

* Piotr Wandycz France and her eastern allies, 1919 – 1925: French-Czechoslovak-Polish relations from the Paris Peace Conference to Locarno, Minneapolis: University of Minnesota Press, 1962.

* Piotr Wandycz, General Weygand and the Battle of Warsaw, in Journal of Central European Affairs, 1960.

* The Polish Underground Army, the Western Allies, and the Failure of Strategic Unity in World War II, foreword by Piotr S. Wandycz, 2005.

* The Polish Underground Army, the Western Allies, and the Failure of Strategic Unity in World War II, foreword by Piotr S. Wandycz, Jefferson, North Carolina, McFarland & Company, 2005, 244 pp., ISBN 0-7864-2009-X.

* Michael Alfred Peszke, The Polish Underground Army, the Western Allies, and the Failure of Strategic Unity in World War II, foreword by Piotr S. Wandycz, Jefferson, North Carolina, McFarland & Company, 2005, ISBN 0-7864-2009-X.

* Piotr Tchaikovsky-Born in Russia to a Ukrainian father and a French mother.

Jerzy Różycki, Jan Graliński and Piotr Smoleński had died in the January 1942 sinking, in the Mediterranean Sea, of a French passenger ship, the Lamoricière, in which they had been returning to southern France from a tour of duty in Algeria.

Pierre Batcheff ( born Piotr Bacev 1901 – died 13 April 1932 ) was a French actor.

The Polish Plumber is portrayed by 21-year-old male model Piotr Adamski, who beckons French tourists to come to Poland in French.

Also lost were Piotr Smoleński and Jan Graliński of the prewar Cipher Bureau's Russian section, and a French officer accompanying the three Poles, Captain François Lane.

It is a part of the international Anarchist Communist movement, and is a " Platformist " organisation, tracing its roots to the historically-important theories in the Organisational Platform of the General Union of Anarchists, first put forward in France in 1926 by Russian refugees including Nestor Makhno, Ida Mett and Piotr Arshinov.

* 1980 – Piotr Giza, Polish footballer

* 1951 – Piotr Pustelnik, Polish mountaineer

* 1984 – Piotr Trochowski, German footballer

* August 20 – Piotr Ilyitch Tchaikovsky's 1812 Overture debuts in Moscow.

* February 23 – Jan Piotr Norblin, artist ( b. 1740 )

* August 27 – Piotr Gamrat, Polish Catholic archbishop ( b. 1487 )

Its participants – Piotr Buchkin, Rudolf Frentz, Alexander Samokhvalov, Isaak Brodsky, Kuzma Petrov-Vodkin, Kazimir Malevich, Nikolai Dormidontov, Mikhail Avilov among them – became the founding fathers of the Leningrad school while their works formed one of its richest layers and the basis of the largest museum collections of Soviet painting of the 1930-1950s.

According to legend the Polish voivode Piotr Włostowic of Dunin ( 1080 – 1153 ) had a fieldstone church built on the hill in the west of Lubin, where about 1230 a castellany and a village arose that until today is called the Old Town ().

* Piotr Trochowski ( 1984 – present ), footballer

** Piotr Rosmenko, the Eastern European Man – Piotr stood stiffly and nervously in an ill-fitting suit while commenting on differences between America and " the old country ," such as " Here in America, is very good, everyone watch television.

* 1949 – 1950 Piotr Novak

* October 16 – Piotr Studzinski, composer

* Piotr Smorodin ( 1922 – 1924 )

* Piotr Vorkosigan – Father of Aral, grandfather to Miles.

The most valuable landmark in Puławy is the baroque-classicist palace and park complex, dating from 1676 – 79, remodeled 1722-36 and by Chrystian Piotr Aigner ca.

* Piotr Bresiński ( 1870 – 1940 )

The King ruled for the claimants, but – according to legend – Stanisław resurrected Piotr so that he could confirm that he had sold the land to the Bishop.

* Piotr Zaleski ( 1850 – 1916 ), Polish traveller, astronomer, geodesist, officer

* Piotr Wieteska ( 1982 – 1986 )-bass guitar

* Piotr Morawiec ( 1982 – 1983 ; 1987 – 1988 ; 1989 – present )-guitar

Pistolet maszynowy wz. 39 Mors ( Mors is Latin for death, Polish for walrus ) was a Polish submachine gun designed by Piotr Wilniewczyc and Jan Skrzypiński between 1936 and 1938.