In 1831, with George IV dead and the new king William IV (formerly the Duke of Clarence) being over 60 without any surviving legitimate issue, and whose nearly 40-year-old wife was considered to be at the end of childbearing age, the young princess's status as heir presumptive and the Duchess's prospective place as regent led to major increases in British state income for the Kents. A contributing factor was Leopold's designation as King of the Belgians, upon which he surrendered his British income.