The man who is believed to have given Russian mercenary group Wagner its name was buried Thursday during a quiet ceremony at a military cemetery in Moscow.

Dmitry Utkin died in an Aug. 23 plane crash that killed all 10 people on board, including Wagner leader Yevgeny Prigozhin and his other top lieutenants. The crash between Moscow and St. Petersburg happened two months after Prigozhin led his fighters in a brief mutiny against Russia’s military leadership.

Utkin, 53, was buried at the Federal Military Memorial Cemetery, where some of Russia’s most decorated military heroes are interred. Russian President Vladimir Putin attended some previous services at the cemetery in the Mytishchi district on Moscow’s outskirts, but Utkin’s was a quiet affair.