FE3 is a two-part remake of and sequel to FE1. FE2 is a side story taking place in the same world as FE1/3. FE5 takes place during FE4. FE7 is a prequel to FE6. FE10 is a sequel to FE9. FE8 is indeed the odd one out!
What the HELL, FE6?
You didn't mention the horde of bandit reinforcements with two berserkers for backup? I mean, sure, they have uniformly bad accuracy, but all they need is one good hit and -splat-.
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I don't like this duchy. Now, it's an adventurer.