Richard was a royal prince until the death of his brother Edward IV in 1483.

BBC: Richard III dig: DNA confirms bones are king's

The investigation has revealed that certain faculty, staff and administrators of the high school also were alerted to the harassment of Phoebe Prince before her death.

FORBES: The Woman Behind Phoebe Prince

It had been thought the prince would cancel the visit after the death of his aunt.

BBC: Prince speaks of Irish 'suffering'

Other guests include Kate Middleton's former headmaster, William's Eton housemaster and Sir John Major, the former British prime minister who was appointed guardian of Prince William after his mother's death.

CNN: Who's going to the royal wedding? Check out the guest list!

The 2002 death of her German-born husband, Prince Claus, took a toll on her, and it was apparent how deep her reliance on the quiet man had been: she was filmed leaning heavily, almost hanging, on Prince Friso's arm as they entered the church for her spouse's funeral.

NPR: Dutch Queen Beatrix Abdicating, Son Will Be King

Recently, however, the sheikh had again irked the ruling Al Saud family with a speech marking the death of the long-standing interior minister, Prince Nayef, who had also recently become the crown prince, as well as having been in charge of the religious police since 1975.

ECONOMIST: Shias in Saudi Arabia and Bahrain

In 1961, Prince Hassan acceded to the throne of Morocco as King Hassan II following the sudden death of his father Mohammed V.

CNN: Thursday,