Duke (Cast in Time, #6)

An Engineer finds himself in an Alternate reality, Cornwall, in the year 715 A.D. He awakens in the body of a young Baron.
James Fletcher continues on his world conquest. He has realized that nothing short of world domination will allow him to live in peace. No matter how he expands the new neighbors will covet his goods and lands.
Now it is Italy that is being conquered while James is doing a grand tour of all his territories. With heavier than aircraft it is smooth sailing, well almost.
Continue on with this wild ride through the eighth century.