Complex sentence: The name was given to the Hundred of Wirral around the 8th century, although by the time of the "Domesday Book" and for some time afterwards the name of the hundred changed to the Hundred of Wilaveston, which later became Willaston.
Split into simpler sentences: The name was given to the Hundred of Wirral around the 8th century. In the "Domesday Book" and shortly afterwards, the name of the hundred changed to the Hundred of Wilaveston, which later became Willaston.