No, Alexandra is not a patron saint.
According to Catholic Online, there is no Saint Leigh. There is a Saint Lea but she is not a patron saint.
As per the Patron Saint Index, Zoe is not a patron saint.
Maximus of Rome, who died about the year 250 as a martyr, is not a patron saint as per the Patron Saint Index.
Saint Valentine of Rome is considered a patron saint of lovers.
She has no patronages. Legend has it that she was hung by her hair and roasted to death.
The patron saint of love is St.Valentine. St. Valentine of Rome is considered the patron saint of those in love.
Felicity of Rome is the patron saint of:against the death of childrenagainst sterilitymartyrsto have male childrenwidows
The patron saints of actor and actresses are Saint Genesius of Rome and Saint Vitus.
Saint Cecilia of Rome is a patron saint of music along with Saint Arnulf of Soissons.
Saint Vitus is the patron saint of dancers.
There is no patron saint of matchmaking. However, if the Church decides to appoint a patron saint , St. Valentine of Rome would be my top choice.
Felicity of Rome is the patron saint of:against the death of childrenagainst sterilitymartyrsto have male childrenwidows