The Black Prince's Ruby is part of the British Imperial State Crown and is estimated to be worth around £100 million. It is a large uncut red spinel, not actually a ruby, and has been part of the British crown jewels for centuries.

In The Happy Prince, the Happy Prince sends the seamstress a ruby. He does this because the seamstress is poor and selling the ruby will allow her to get money to buy her sick child some medicine.

Prince is black (African-American).

Black Prince Buses was created in 1969.

Ruby Bridges encouraged black people