"When you look at Prince Charles, don't you think that someone in the Royal family knew someone in the Royal family?"

This quote by Robin Williams is an amusing method of mentioning the reality that Prince Charles is the kid of Queen Elizabeth II, which the Royal family is an extremely close-knit group. It indicates that the Royal household is so close that they must have known each other before Prince Charles was born. It also implies that the Royal household is so effective and prominent that they can set up marital relationships and births within their own household. The quote is a funny method of mentioning the power and influence of the Royal household, and how they have the ability to control their own destiny. It is likewise a tip that the Royal household is a very close-knit group, which they have actually been able to maintain their power and influence for centuries.