Tullus and Ancus were the third and fourth kings of Rome.

They can none of them be considered historical figures.
CIX.

This Brutus expelled Tarquinius Superbus, the last king of Rome.
His sons tried to restore the monarchy and he ordered them to be executed.
CX.

The Decii, father and son, both died in battle, and the family of the Drusi had many distinguished members.

Manlius Torquatus was celebrated for killing his son for disobeying orders.