Province of Isernia
... that the capital city of the Province of Isernia was destroyed by an earthquake in 874, and its cathedral collapsed in another earthquake in 1805?
... that the capital city of the <b id="mwCnE"><a href="./Province_of_Isernia" id="mwCnI" rel="mw:WikiLink" title="Province of Isernia">Province of Isernia</a></b> was destroyed by an earthquake in 874, and its cathedral collapsed in another earthquake in 1805?