The consular tribune Lucius replaced in 444, Aulus Sempronius Atratinus, was most likely his brother.
Filiations indicate that he had a son, Aulus Sempronius Atratinus, consular tribune in 425.
[1] Lucius Sempronius Atratinus and Lucius Papirius Mugillanus were both elected consul in 444 BC after the three consular tribunes, Aulus Sempronius Atratinus, Lucius Atilius Luscus and Titus Cloelius Siculus were forced to abdicate because of flaws in the auspices performed during their election.
According to Livy this is the only reason why we know that they were consuls for that year, because they have not been found in other ancient text.
[2][3][4][5] The year after their consulship both he and his consular colleague, Papirius, were elected as the first censors.