Jackie Kennedy Onassis: See 10 of Her Most Iconic Fashion Moments from the ‘Jackie O’ Years

Forty-six years ago, First Lady Jackie Kennedy famously wed Greek shipping magnate Aristotle Onassis in an intimate ceremony overseas.

By 1968 — five years after her husband President John F. Kennedy's assassination — Jackie was already known as a bonafide fashion icon. But after marrying Aristotle, her style changed from preppy and polished to sophisticated and ultra-chic. Known as the 'Jackie O' era of wide-legged pants, head scarves and over-sized sunglasses, this look endures in fashion to this day.

So, on the anniversary of Jackie and Ari's marriage, we remember 10 of the woman's most stylish, elegant and graceful fashion moments from the 'Jackie O' years. Click through the gallery to see!