Lady Alice fitz Alan

Lady Alice fitz Alan (1314-1376) 

Spouse: Lord Robert Locke

Son: Lord William Locke

What’s the meaning of Fitz?
“son of”
Fitz (pronounced “fits”) was a patronymic indicator used in Anglo-Norman England to help distinguish individuals by identifying their immediate predecessors. Meaning “son of“, it would precede the father’s forename, or less commonly a title held by the father.