Namesakes
Fictional Characters from Plays and Musicals:
1 character
Marguerite 2008 Marguerite 
Notable Actors and Entertainers:
5 actors
Marguerite Clark 1883-1940
Marguerite Churchill 1910-2000
Maggie McNamara 1928-1978
Fanny Ardant (middle name Marguerite) 1949-
Marguerite Moreau 1977-
Notable Filmmakers:
1 director
Stijn Coninx (middle name Marguerite) 1957-
Notable Writers:
2 authors
Marguerite Yourcenar 1903-1987
Marguerite Duras 1914-1996
Olympic Medalists:
1 gold
(gold) Sophie Hosking (middle name Marguerite) 2012 rowing
Other Royalty:
2 queen consorts, 1 princess
Marguerite de Navarre 1527-1549 Navarre
Elizabeth, The Queen Mother (middle name Marguerite) 1936-1952 United Kingdom
Athena of Denmark (middle name Marguerite) 2012-2023 Denmark
Saints:
3 blessed, 3 saints
Blessed Margaret of Louvain (a.k.a. Marguerite) 1207-1225
Blessed Marguerite of Lorraine 1463-1521
Saint Marguerite Bourgeoys 1620-1700
Saint Marguerite Marie Alacoque 1647-1690
Saint Marguerite d'Youville 1701-1771
Blessed Marguerite Bays 1815-1879