The Dynasty of Darius

Darius was the lance bearer when he got killed by his own lance. He didn't have a good claim to the throne at the time. The question of How did this happen and is it legitimate? Yes, do you remember the name of the dynasty? That newly self-appointed king darius Declared what was the name of his dynasty? Oh goodness. You're asking me hard alchemy. I did there something is that Do that's pretty good.