Cassandra Clare's birth name is Judith Rumelt.
Cassandra Collins's birth name is Cassandra Haikalis.
Cassandra Bell's birth name is Cassandra Wilson Bell.
Cassandra Carmona's birth name is Cassandra Lois Carmona.
Cassandra Swaby's birth name is Cassandra Angelia Swaby.
Cassandra Nuss's birth name is Cassandra Marie Nuss.
Cassandra McCormick's birth name is Cassandra Lynn Crider.
Cassandra Scerbo's birth name is Cassandra Lynn Scerbo.
Cassandra Gava's birth name is Cassandra Gaviola.
Cassandra Compton's birth name is Cassandra Louise Edith Compton.
Cassandra Jardine's birth name is Cassandra Caroline Mary Jardine.
Yes City of Bones is by Cassandra clare
Clare Corridan's birth name is Clare Vallotton.