The Pennington name, while remains somewhat ambiguous do to misspellings is believed to exist before 1066a.d. All data has been traced through various names, religious records and migrations. The true identity of Alan Pennington's wife still is not known, but his three sons have been documented. Family records and events became more accurate after 1464 with Sir John Pennington. To this day more and more is being discovered about Muncaster castle including its growing importance to the Romans during the Roman occupation of Western Europe. Muncaster's history has been one of the most interesting in all of England and the Pennington name is one of the oldest.