Name the administrative county being area of 422372
{'header': ['Administrative county', 'Area 1891 (Statute acres)', 'Population 1891', 'Area 1961 (Statute acres)', 'Population 1961'], 'page_title': 'History of local government in Wales', 'section_title': 'Administrative Counties', 'caption': 'Administrative Counties', 'rows': [['Anglesey', '175836', '50098', '176694', '51705'], ['Brecknockshire', '469894', '51393', '469281', '55185'], ['Cardiganshire', '443071', '63467', '443189', '53648'], ['Carmarthenshire', '587816', '130566', '588271', '168008'], ['Caernarfonshire (1)', '360138', '117233', '364108', '121767'], ['Denbighshire', '424235', '118843', '427978', '174151'], ['Flintshire', '164051', '77277', '163707', '150082'], ['Glamorgan', '505815', '467954', '468808', '523253'], ['Merionethshire', '427810', '49212', '422372', '38310'], ['Monmouthshire (2)', '342548', '203347', '346779', '336556'], ['Montgomeryshire', '510111', '58003', '510110', '41165'], ['Pembrokeshire', '392710', '88296', '393008', '94124']]}