This is my problem- if you want to make a CHILD's video where children will not have to deal with harsh realiites, then by all means make one, but make it FANTASY with FICTIONAL characters. It is WRONG and misleading to take actual historical events about REAL people and patch and color them up so kids won't have to see the bad things that happened. That only teaches them wrong about what really happened in history, and like I said, I have encountered MANY people who don't know the real story of the Tsar because they believe the Anastasia cartoon instead! So make fun stuff for kids, but make it fiction, not twisted fact.
I must also say this is ironic that things are being 'toned down' for kids, even facts. If you read the original Grimm's fairy tales, they were indeed 'grim'- other old legends and tales too. In the older times, when diseases and wars raged, kids were used to people, even their own siblings and friends, dying all the time. So they were not shocked by death and horror in fairy tales the way kids are now who have grown up in a different time. I was surprised to find out I had only read 'censored' versions of fairy tales, and was interested in reading the originals. But still, those are FAIRY TALES, they never were real to begin with, so changing them is not as bad as changing actual history!