Cornelia Cinna (Cinnilla) the Younger (c. 94 BC; 68 or 69 BC) was the daughter of Lucius Cornelius Cinna, one of the main leaders of Marius' party. Married in -83 to Julius Caesar, she had a daughter with him, Julia, whom he married to Pompey in -60.
Because of his kinship with the widow of Marius (his aunt Julia) and his alliance with the Cinna family, Caesar was well suited to suffer the vengeance of the dictator Sylla when the latter undertook to proscribe members of the Marianist party. Summoned to repudiate Cornelia, Caesar haughtily refused and preferred to leave Rome, spending several months in hiding before finally being pardoned thanks to the powerful support of his maternal family.
Cornelie died just before César left for Spain as quaestor. Just as he had done shortly before for his aunt Julia, he pronounced his eulogy on the Rostra. It was not the custom for such a young woman and the people saw in it a mark of sensitivity and attachment. It is probable however that César, who never acted without ulterior motive, took advantage of this occasion to reaffirm his political allegiances just as he had done on the occasion of the funeral of his aunt.