Prince Philip, the Duke of Edinburgh has recently passed away. His titles now automatically pass to his heir, but who is that?

His eldest son, Charles Prince of Wales is now the next Duke of Edinburgh. Along with the dukedom, Prince Charles has also inherited Philip’s earldom of Merioneth and barony of Greenwich.

On 19 November 1947, the day before his wedding to Princess Elizabeth, his father-in-law King George VI bestowed by Letters Patent the style His Royal Highness on Philip, and on the morning of the wedding, 20 November 1947, further Letters Patent of that day created him Duke of Edinburgh, Earl of Merioneth, and Baron Greenwich of Greenwich in the County of London.

As was usual, the titles were in remainder to the 1st Duke’s heirs male of the body lawfully begotten. That means that his eldest son Prince Charles, the Prince of Wales, has become the new Duke of Edinburgh.

However, Prince Charles will still be known by his senior title of Prince of Wales (or Duke of Rothesay when in Scotland). The dukedom of Edinburgh has now simply been added to Charles’s list of other titles.

When Charles becomes king, the dukedom (and all his other titles) will merge with the Crown. At that point, Charles will be free to give the title to his brother, Prince Edward. This is expected to occur because Edward was promised the title.