Estates-General of 1789 in the context of "National Assembly (French Revolution)"

Emmanuel Joseph Sieyès (3 May 1748 – 20 June 1836), usually known as the Abbé Sieyès (traditional French pronunciation: [sijɛːs]; modern pronunciation: [sjejɛs]), was a French Catholic priest, abbé, and political writer who was a leading political theorist of the French Revolution (1789–1799); he also held offices in the governments of the French Consulate (1799–1804) and the First French Empire (1804–1815).

His pamphlet What Is the Third Estate? (1789) became the political manifesto of the Revolution, which facilitated transforming the Estates-General into the National Assembly, in June 1789. He was offered and refused an office in the French Directory (1795–1799). After becoming a director in 1799, Sieyès was among the instigators of the Coup of 18 Brumaire (9 November), which installed Napoleon Bonaparte in power.

Adam Philippe, Comte de Custine (4 February 1740 – 28 August 1793) was a French Army officer. As a young officer in the French Royal Army, he served in the Seven Years' War. In the American Revolutionary War he joined Rochambeau's Expédition Particulière (Special Expedition) supporting the American colonists. Following the successful Virginia campaign and the Battle of Yorktown, he returned to France and rejoined his unit in the Royal Army.

When the French Revolution began he was elected to the Estates-General and served in the subsequent National Constituent Assembly as a representative from Metz. He supported some of the August Decrees, but also supported, generally, royal prerogative and the rights of the French émigrés. At the dissolution of the Assembly in 1791, he rejoined the army as a lieutenant general and the following year replaced Nicolas Luckner as commander-in-chief of the Army of the Vosges. In 1792, he successfully led campaigns in the middle and upper Rhine regions, taking Speyer and Mainz and breaching the Wissembourg lines. Following Charles François Dumouriez's apparent treason, the Committee of Public Safety investigated Custine, but a vigorous defense mounted by Maximillien Robespierre resulted in his acquittal.