A concert at a festival in Italy that was to have been the conductor Valery Gergiev’s first in Western Europe since Russia invaded Ukraine more than three years ago was canceled on Monday amid a backlash over the musician’s close ties to President Vladimir V. Putin of Russia.
Antonella Giannattasio, a spokeswoman for the Un’Estate da RE festival, said in a telephone interview that Mr. Gergiev would no longer perform on July 27 at the Royal Palace of Caserta, a historic site north of Naples.
Italian activists and politicians had denounced plans for Mr. Gergiev to conduct at the event. Mr. Gergiev, a staunch ally of Mr. Putin, lost all his engagements in the West when Russia invaded Ukraine in early 2022.
There was concern in Italy and more broadly in the European Union about Mr. Gergiev’s participation, given that the festival is bankrolled by the bloc. There were fears that his presence could be seen as an endorsement of Russia at a time when Europe is scrambling to provide weapons to Ukraine as the Trump administration’s support for Kyiv has seemed to waver.