Britain Puts On a Royal Spectacle for Prince Harry and Meghan Markle’s Wedding

Queen’s grandson and ‘Suits’ star’s nuptials signify the modernization of the British monarchy

Members of Britain’s Royal family don’t vote and are expected to remain politically neutral. So how will Meghan Markle, a humanitarian activist and star of the hit show "Suits," adapt to her new life when she marries Prince Harry? Image: Getty Images

WINDSOR, England—A grandson of Queen Elizabeth II will on Saturday take as his bride an American actress, in a wedding that is melding Hollywood glitz and glamour with centuries-old royal traditions.

Millions of people around the world are set to watch on television as Meghan Markle, the star of the legal drama “Suits,” walks down the aisle of 15th-century St. George’s Chapel, just inside the walls of Windsor Castle. After Prince Harry, 33, and Ms. Markle, 36, tie the knot, the newlyweds will greet crowds from an open-topped...