Former BBC royal correspondent Peter Hunt said the future King is close to becoming a “de facto prince regent”.
He claimed Buckingham Palace is keen to show the monarchy is “safe in the hands of father and son”.
This comes as Charles is set to stand in for the Queen at the State Opening of Parliament tomorrow.
In what is seen as an unprecedented move, the Queen has delegated certain powers as head of state to the two royals as Counsellors of State, in order to allow them to open Parliament on her behalf.
Mr Hunt said it is a “significant moment for two future kings”.
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