Complex sentence: A house of some sort stood there in the early 12th century and this was largely rebuilt in the Tudor architecture style in the 16th century; the east wing was subsequently rebuilt from 1688 in Georgian architecture style.
Split into simpler sentences: A house of some sort stood there in the early 12th century. It was largely rebuilt in the Tudor architecture style in the 16th century; the east wing was subsequently rebuilt from 1688 in Georgian architecture style.