Lillie Langtry (1853-1929) was a British music hall singer and stage actress famous for her many stage productions. She was also known for her relationships with nobility. She was an early example of celebrity endorsement, using her high public profile to endorse commercial products such as cosmetics and soap.
Edward, Prince of Wales's first 'official mistress', Lillie Langtree, their affair lasted from 1877 to 1880. The tiara features many diamond pinnacles, alternately topped with flower heads and honeysuckle on a band of diamonds.