The donkey walk (Russian: хождение на осляти, шествие на осляти) is a Russian Orthodox Palm Sunday ritual re-enactment of Jesus Christ’s entry into Jerusalem. The best known historical donkey walk was practised in Moscow from 1558 until 1693. The Metropolitan and later Patriarch of Moscow, representing Jesus Christ, rode on a “donkey” (actually a horse{insufficient citation}[1]), while the Tsar of Russia humbly led the donkey on foot.

Donkey walk – Wikipedia

https://en.wikipedia.org/wiki/Donkey_walk

The donkey walk (Russian: хождение на осляти, шествие на осляти) is a Russian Orthodox Palm Sunday ritual re-enactment of Jesus Christ’s entry into Jerusalem. The best known historical donkey walk was practised in Moscow from 1558 until 1693. The Metropolitan and later Patriarch of Moscow, representing Jesus Christ, rode on a “donkey” (actually a horse{insufficient citation}[1]), while the Tsar of Russia humbly led the donkey on foot.