Reasonably polite,with caution depending on your surroundings! Or better yet? Let him address you to keep things Reasonable and with out Alarm?
i believe the only is to write to the clarence house but address it to prince william.
The simplest way would be to address the envelope to the "Duke and Duchess of Cambridge".
the day he was born would be my guess.
She would abdicate in favour of Prince Charles becoming king. If Prince Charles refused, then the roll would become the responsibility of Prince William.
He can...... But if he were to abdicate then he would not.
Prince Willam and Princess Kate mildeton because king charles II is Prince willam and Prince Harrys dad
Prince Charles is next in line.
HRH Princess
If Prince Charles dies, Prince Andrew will not become King because Prince Charles has two sons, Princes William and Harry. As Charles is heir to the throne, if he dies, his eldest son William will become heir.
Prince Charles the Queen's eldest son will suceed to the throne of England etc when the Queen dies.
Prince William, who is now the Duke of Cambridge.
Prince George (born July 22, 2013) is third in line. As of 2016, the line is through Prince Charles (oldest son) to Prince William (oldest son) to Prince William's children (George and Charlotte). They would be followed by Prince Harry (William's younger brother), then Prince Andrew, Duke of York (younger brother of Charles) and Andrew's daughters Princess Beatrice and Princess Eugenie.
Camilla Parker Bowles, who is now married to Prince Charles.
Nobody is absolutely sure whether Prince Charles will be King or abdicate the throne and pass it on to Prince William.