Experts have pointed out the stumbling blocks Kate Middleton had to overcome before she was able to secure her engagement to Prince William.

Tina Brown, the author of The Palace Papers, only recently made this revelation.

She pointed out the “care and strategy” Kate Middleton employed “to end up married to William.”

She branded the efforts akin to “an obstacle course” and admitted there were a lot of pitfalls to avoid.

Ms Brown was also quoted telling Express UK, “They were madly in love all the way through but…making it from the loving girlfriend to the future queen, that’s an obstacle course.”

“And it’s like snakes and ladders. At any moment she could have stepped on the wrong square and had a snake.”

Even Carol Middleton played an a “very critical” in helping her “avoid the snakes on the board.”