Russia
Eastern Europe includes the countries of Belarus, Estonia, Latvia, Lithuania, Poland, the European part of Russia and Ukraine. All these countries share important parts of their history, for example Poland and the Baltic States, Poland and Ukraine, and Russia and Ukraine. This also means that they share a number of their heroes, immortalized by building them an equestrian statue. Most of the equestrian statues are in Russia, Ukraine and Poland.
We may be glad that the poet Pushkin and Lenin never have been portrayed riding a horse. The number of equestrian statues in Russia should have been more than doubled.
Another question is whether an equestrian statue of President Putin will be erected one day. He is portrayed already riding a horse stripped to the waist. Only on a photo. It could be the start of a process.