regulate and restrict slavery. Hercules Mulligan (1740–1825), tailor and spy during the American Revolutionary War, his slave, Cato, was his accomplice in espionage. After the war, Mulligan became an abolitionist. Mansa Musa ( – ), ruler of the Mali Empire; 12,000 slaves reportedly accompanied him on his Hajj. N John Newton (1725–1807), British slave trader and later abolitionist. Nicias (–413 BCE), Athenian politician and general. Plutarch recorded that he enslaved more than 1,000 people in his silver mines. Nikarete of Corinth (), she bought young girls from the Corinthian slave market and trained them as hetaera. O Susannah Ostrehan (died 1809), Barbadian businesswoman, herself a freed slave, she bought some slaves (including her own family) in order to free them, but kept others to labor on her properties. James Owen (1784–1865), American politician, planter, major-general and businessman, he owned the enslaved scholar Omar ibn Said. P John Page (1628–1692), Virginia merchant and agent for the slave-trading Royal African Company. Suzanne Amomba Paillé (–1755), African-Guianan slave, slave owner and planter. Charles Nicholas Pallmer (1772–1848) British Member of Parliament and Jamaican plantation owner. George Palmer (1772–1853), English businessman and politician. As a slave owner, he received compensation when slavery was abolished in Grenada. William Penn (1644–1718), founder of Pennsylvania, he owned many slaves. Richard Pennant, 1st Baron Penrhyn (1737–1808), owned six sugar plantations in Jamaica and was an outspoken anti-abolitionist. John J. Pettus (1813–1867), 20th and 23rd Governor of Mississippi, enslaved 24 people on his farm. Thomas Phillips, (1760–1851) founder of Llandovery College and a slave owner. John Pinney (1740–1818), a British merchant, he inherited a sugar plantation on Nevis at age 22 and bought dozens of enslaved people to work it. Plato, (428/427 or 424/423 – 348/347 BCE), Athenian philosopher, reported to have owned several slaves. Susanna du Plessis (1739–1795), planter in Dutch Surinam, legendary for her cruelty. Vedius Pollio (died 15 BCE), a Roman aristocrat remembered for being exceedingly cruel to his slaves. James K. Polk (1795–1849), 11th President of the United States, he owned slaves most of his adult life. Leonidas Polk (1806–1864), Episcopal bishop and Confederate general, he enslaved people on his Tennessee plantation. Samuel Polk (1772–1827), father of President James K. Polk. Rachael Pringle Polgreen (1753–1791) Afro-Barbadian hotelier and brothel owner. Emancipated herself, she had a violent temper and abused her own slaves. Q John A. Quitman (1798–1858), Mississippi politician and prominent member of the pro-slavery Fire-Eaters.