Cincinnati is the son of Denver and Stockholm.
We don’t know much about Cincinnati. He seems to be adored by his father from the moment he learns that he is a boy.
Denver explains that the sonographers predicted that their child would be a girl and that Mónica was, therefore, considering calling her Cynthia.
When the couple learns that it was, in fact, a boy, they think of naming him Cincinnati (the city in the United States in Ohio) in tribute to their gang.
Cincinnati Money Heist