Princess Diana wears special low-heeled shoes on her wedding day to avoid being taller than Prince Charles.

Because royal weddings (open in new tab) are major events, every detail is meticulously planned; even at the 1981 wedding of Princess Diana and Prince Charles (open in new tab), special attention was paid to the shoes worn on this big day.

In his book "Battle of Brothers: William and Harry - The Inside Story of a Family in Tumult" (opens in new tab), royal biographer and historian Robert Lacey describes the special shoes Diana wore on her wedding day He describes the The bride's intricate ivory taffeta gown was paired with a lace veil of perhaps 153 yards along with a tiara, an 18th century heirloom, and her silk bridal slippers were embroidered with 542 sequins and 132 pearls.

Not a good reason to decide on heel height, but the shoes themselves were undeniably gorgeous:

Of course, Diana made a point (open in new tab) of standing tall at key points on her wedding day. 9]

"Speaking of the couple's wedding vows Lacey writes, "The first time in the history of the royal family, Diana was the first to be married to a woman." Diana was the first bride in royal history to promise to love, honor, and cherish her husband, though she did not necessarily promise to "obey.""

"Diana was the first bride in royal history to promise to love, honor, and cherish her husband, though she did not necessarily promise to "obey.