Sir Michael Moritz remains the richest person in Wales, according to the new edition of The Sunday Times Rich List. : Sir Michael Moritz remains the richest person in Wales, according to the new edition of The Sunday Times Rich List Sir Michael Moritz is the richest person in Wales, according to the new edition of The Sunday Times Rich List, to be published this Sunday. The 136-page special edition of The Sunday Times Magazine reveals the wealth of the 1,000 richest people in Britain in its 32nd annual edition.