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Francois-Marie Arouet (French: [fRa.swa ma.Ri aR.we]; 21 November 1694 - 30 May 1778), known by his nom de plume Voltaire (; French: [vol.te:R]), was a French Enlightenment writer, historian and philosopher famous for his wit, his attacks on the established Catholic Church and Christianity as a whole and his advocacy of freedom of religion, freedom of speech and separation of church and state.

Francois-Marie Arouet was born in Paris, the youngest of the five children of Francois Arouet (19 August 1649 - 1 January 1722), a lawyer who was a minor treasury official, and his wife, Marie Marguerite Daumard (c. 1660 - 13 July 1701), whose family was on the lowest rank of the French nobility. Some speculation surrounds Voltaire's date of birth, because he claimed he was born on 20 February 1694 as the illegitimate son of a nobleman, Guerin de Rochebrune or Roquebrune. Two of his older brothers--Armand-Francois and Robert--died in infancy, and his surviving brother Armand and sister Marguerite-Catherine were nine and seven years older, respectively. Nicknamed "Zozo" by his family, Voltaire was baptized on 22 November 1694, with Francois de Castagnere, abbe de Chateauneuf, and Marie Daumard, the wife of his mother's cousin, standing as godparents. He was educated by the Jesuits at the College Louis-le-Grand (1704-1711), where he was taught Latin, theology, and rhetoric; later in life he became fluent in Italian, Spanish, and English.  By the time he left school, Voltaire had decided he wanted to be a writer, against the wishes of his father, who wanted him to become a lawyer. Voltaire, pretending to work in Paris as an assistant to a notary, spent much of his time writing poetry. When his father found out, he sent Voltaire to study law, this time in Caen, Normandy. But the young man continued to write, producing essays and historical studies. Voltaire's wit made him popular among some of the aristocratic families with whom he mixed. In 1713, his father obtained a job for him as a secretary to the new French ambassador in the Netherlands, the marquis de Chateauneuf, the brother of Voltaire's godfather. At The Hague, Voltaire fell in love with a French Protestant refugee named Catherine Olympe Dunoyer (known as 'Pimpette'). Their affair, considered scandalous, was discovered by de Chateauneuf and Voltaire was forced to return to France by the end of the year.  Most of Voltaire's early life revolved around Paris. From early on, Voltaire had trouble with the authorities for critiques of the government. As a result, he was twice sentenced to prison and once to temporary exile to England. One satirical verse, in which Voltaire accused the Regent of incest with his daughter, resulted in an eleven-month imprisonment in the Bastille. The Comedie-Francaise had agreed in January 1717 to stage his debut play, OEdipe, and it opened in mid-November 1718, seven months after his release. Its immediate critical and financial success established his reputation. Both the Regent and King George I of Great Britain presented Voltaire with medals as a mark of their appreciation.  He mainly argued for religious tolerance and freedom of thought. He campaigned to eradicate priestly and aristo-monarchical authority, and supported a constitutional monarchy that protects people's rights.
Voltaire