Margaret I was the countess of Flanders suo jure from 1191 to her death. Wikipedia
Born: 1145, Lorraine
Died: November 15, 1194 (age 49 years), Bruges, Belgium
Grandchildren: Margaret II, Countess of Flanders, Joan, Countess of Flanders, Louis VIII of France, and more
Children: Yolanda, Latin Empress, Isabella of Hainault, Baldwin I, Latin Emperor, and more
Grandparents: Fulk, King of Jerusalem, Gertrude of Flanders, Duchess of Lorraine, Eremburga of Maine, and more
Spouse: Baldwin V, Count of Hainaut (m. 1169)
Parents: Thierry, Count of Flanders and Sibylla of Anjou