The Deputy Prime Minister found himself in hot water after commenting on the debate about whether the Queen should abdicate the throne.
The Queen, 88, will
become Britain's longest serving monarch next year when she overtakes Queen
Victoria's reign of 63 years and seven months.
Prince Charles has been
heir to the throne for 62 years.
Clegg was overheard
stepping into the debate by saying: "I've always quite liked him [Charles]
actually. It must be a nightmare just being in this ante-room for
decades."
His comments caused
backlash among Tories who believe ministers should not comment on royal
affairs.
Stuart
Andrew, MP for Pudsey in West Yorkshire, told the Mail on Sunday: "Given that next year
the Queen will become our longest-serving monarch, Nick Clegg's remarks are as
untimely as they are disrespectful.