Namesakes
Other Royalty:
4 princesses
Maria Clotilde of Savoy (a.k.a. Ludovica) 1843-1859 Sardinia 
Maria Pia of Savoy (middle name Ludovica) 1934-1946 Italy
Maria Gabriella of Savoy (middle name Ludovica) 1940-1946 Italy
Maria Beatrice of Savoy (middle name Ludovica) 1943-1946 Italy
Saints:
2 blessed
Blessed Ludovica Albertoni 1473-1533
Blessed Maria Ludovica De Angelis 1880-1962