Cossutia

Cossutia was a woman from a modest Roman family who became engaged to Julius Caesar prior to his assuming the toga of manhood.
Cossutia appealed to Caesar, although the Cossuti were not even novi homines. She was recommended to Caesar by his father and it is believed that the future dictator of Rome married Cossutia after he began wearing the toga virilis.
No children sprang from this relation. In 84 B.C., after his father's death, Caesar left Cossutia and made a marriage to Cornelia that was more pragmatic than the earlier relation.
Cossutia perhaps died in Pisa, Italy in 84 B.C.

Modern sources differ, some maintaining that Caesar was never married to this woman. Among these include Ludwig Friedrich Otto Baumgarten-Crusius, Napoleon III, Merrivale, James Anthony Froude, Dodge, Warde Fowler, Ernest Gottlieb Sihler, von Mess, and John Carew Rolfe. The French author Bouillet lists Cossutia first, then Cornelia, Pompeia, and Calpurnia, as wives of Caesar. Plutarch largely ignores Cossutia, but names her as one of Caesar's wives.