Viscount Whitelaw
Viscount Whitelaw was the first hereditary peerage title created in the United Kingdom for eighteen years, in 1983. It was conferred on Deputy Prime Minister William Stephen Ian Whitelaw with remainder limited to heirs male, and as he had only daughters it became extinct on his death.
His eldest daughter married and divorced the heir presumptive to the Earl of Swinton, and her two sons by that marriage are in line to inherit that title, so a special remainder to the viscounty would have seen it submerged in the earldom in any event.
