Middleton regrets not meeting Princess Diana

The 28-year-old beauty describes Diana as an "inspirational" figure she can look up to in life, reports contactmusic.com.

"Obviously, I would have loved to have met her and she's obviously an inspirational woman to look up to. On this day and going forward and things, you know, it is a wonderful family, the members who I've met have achieved a lot and very inspirational," said Middleton.

Middleton, who has been dating William for almost nine years, admits she is "nervous" about being welcomed by the royal family, but hopes she can use her position to "make a difference".

"It's obviously nerve-wracking, I don't know the ropes, William is obviously used to it, but I'm willing to learn quickly and work hard. I really hope I can make a difference, even in the smallest way. I am looking forward to helping as much as I can," Middleton said in a TV interview.