Every country has a flag and a coat of arms. The Netherlands has a lion, France has a rooster, New Zealand has a kiwi, and the United States has a bald eagle. In Russia, it’s an eagle with two heads and three crowns, and a man on a horse who has just killed a dragon with a spear.
When you see the current Russian flag, it’s easy to also think of the Dutch one. This puts you immediately on the right track about the origin of the Russian tricolor: the white-blue-red of the Russian Federation directly stems from the red-white-blue of the Netherlands.