Porsena

Porsena, a king of Etruria, famous in the early history of Rome, who took up arms to restore Tarquin, the last king, but was reconciled to the Roman people from the brave feats he saw, certain of them accomplished, as well as the formidable power of endurance they displayed.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Porphyry * Porson, Richard
Poole
Poole, Matthew
Poona
Poor Richard
Pope
Pope, Alexander
Popish Plot
Porch, The
Porcupine, Peter
Porphyry
Porsena
Porson, Richard
Port Arthur
Port Darwin
Port Elizabeth
Port Glasgow
Port Louis
Port Royal
Port-au-Prince
Portcullis
Porte, Sublime