Post by Ind_duke
Prince Charles is currently the longest ever serving heir apparent to the British crown having been the heir apparent since the Queen's accession (66 years and 46 days as of March 25, 2018). Is it also likely that he could be the longest ever serving heir apparent to any monarch in world history? I guess the chances are very high. Can anybody think of heirs apparent to monarchs in history who have served for a longer time than Charles?
Not what you were asking, but I can think of two people who were heirs presumptive to either the British crown or its predecessors when they were older than Charles now is: -
1. https://en.wikipedia.org/wiki/Sophia_of_Hanover (born 1630, became such on the death of William III in 1702, remained such until her death in 1714).
2. https://en.wikipedia.org/wiki/Ernest_Augustus,_King_of_Hanover (born 1771, became such on the death of William IV in 1837, remained such until the birth of Princess Victoria in 1840).