The charges were formally presented on Thursday at the District Prosecutor’s Office in Warsaw, National Public Prosecutor Dariusz Korneluk said.
Braun, leader of the far-right Confederation of the Polish Crown, pleaded not guilty and declined to give a statement, Korneluk told broadcaster TVN24 on Friday.
Two charges concern the alleged theft of flags. Prosecutors say Braun took a Ukrainian flag from Biała Podlaska City Hall in eastern Poland in April last year and a European Union flag from the lobby of a government building in the southern city of Katowice the following month.
A third charge concerns the destruction of an exhibition about LGBT+ people in the main lobby of the Polish parliament in June last year.
Braun removed display boards, threw them to the floor and bent them. He was subsequently banned from entering the parliamentary complex.
Lower-house Speaker Włodzimierz Czarzasty has said he will maintain the ban.
The fourth charge is one of defamation and stems from remarks Braun made during a televised presidential election debate in April 2025.
Braun called the yellow daffodil used by the Polin Museum of the History of Polish Jews in its annual Warsaw Ghetto Uprising commemoration a "sign of shame."
The museum distributes paper daffodils each April to commemorate the 1943 uprising by Jews imprisoned in the German Nazi-created Warsaw Ghetto.
The flower became a symbol of remembrance through Marek Edelman, the last surviving commander of the uprising, who laid yellow flowers at Warsaw's Monument to the Ghetto Heroes every April 19.
The European Parliament waived Braun's immunity on March 26, allowing Polish prosecutors to pursue the four cases.
Prosecutors had requested the waiver in July 2025.
Members of the European Parliament enjoy immunity from prosecution in their home countries, but the parliament can waive it following a request from national authorities. Such decisions apply to individual cases.
Braun has faced several other criminal proceedings. Since December, he has been on trial before a Warsaw court over a series of earlier incidents.
They include his use of a fire extinguisher to put out Hanukkah candles during a ceremony in the Polish lower house in December 2023.
The trial also covers a March 2022 incident at the National Institute of Cardiology in Warsaw, where Braun and several supporters entered the hospital to protest COVID-19 restrictions.
Prosecutors say he disrupted a management meeting, physically confronted director Łukasz Szumowski and falsely accused him during an online broadcast of working while under the influence of alcohol.
(rt/gs)
Source: IAR/PAP, TVN24