Grace Kelly was 26 when she gave up acting to become Princess Grace of Monaco.

BBC: 7 questions on early retirement

Its newer lines are the Nicolas Rieussec Collection, named after the person who invented the chronograph, and the Montblanc Collection Princesse Grace de Monaco, in honor of Grace Kelly, the famous actress and Princess of Monaco.

FORBES: Montblanc Earns Its Place Among Swiss Watchmakers

In 1982, Princess Grace of Monaco, formerly the American film actress Grace Kelly, died in the hospital after a car crash the previous day.

CNN: Monday,

Their friend Princess Grace of Monaco dropped by to dazzle clients.

FORBES: Her Way

LONDON, England -- Madonna is planning to get married wearing a tiara previously worn by the late Princess Grace of Monaco, according to her official fan club website.

CNN: Madonna to wed in Princess Grace's tiara

The Philadelphia-born actress was thrust into the international spotlight when she married Rainier III, Prince of Monaco, and became known throughout the world as Princess Grace.

FORBES: The Montblanc Princess Grace Collection