The vote followed a recommendation earlier this week by the parliament’s legal affairs committee, which unanimously supported the move.
Krzysztof Śmiszek, a Polish member of the European Parliament (MEP) from the New Left group, said there was no place in the assembly for antisemitism, racism or homophobia.
"The parliament had no doubts about lifting Braun’s immunity," Śmiszek said, adding that "antisemitism, violence and discrimination are not European values.”
Michał Wawrykiewicz, a Polish lawmaker from the European People’s Party, said the decision confirmed the committee’s recommendation and included what he described as a “particularly abhorrent” case involving denial of the existence of gas chambers at the Nazi German Auschwitz death camp.
The lifting of immunity allows Polish prosecutors to proceed with their investigation.
It marks the fourth time the European Parliament has voted to remove Braun’s immunity.
MEPs have previously approved similar requests in cases involving the extinguishing of Hanukkah candles in the Polish parliament and an assault on a gynecologist in Oleśnica, southwestern Poland.
Wawrykiewicz said Braun had become widely known in Brussels for such incidents, calling him a leading figure in cases involving requests to waive parliamentary immunity.