[1] He also wrote a Parthika in nine books, presumably a narrative of the Parthian campaigns of the preceding century.
Some scholars attribute to him a Germanika, based on an excerpt preserved by Agathias,[2] although this is debated.
These brothers were sons of Gaius Asinius Nicomachus (born circa 135) and his wife and cousin Julia Quadratilla (born circa 145) (or perhaps Asinia Marcellina, descendant of the family of Gaius Asinius Pollio), and grandchildren of Gaius Asinius Rufus (circa 110 - after 136), a notable in Lydia in 134 and 135 who became a Roman senator in 136, and wife Julia.
Felix Jacoby argues that Quadratus unusually dated the founding of Rome to the first Olympiad in 776.
Giuseppe Zecchini, though, claims that Quadratus used the traditional dating of the founding of Rome and intended the work to extend to 248, when Philip the Arab celebrated the first millennium, but that he died before its completion.