[2] His parents were Count Philibert Jean-Baptiste François Joseph Curial (1774–1829) and Clémentine Amélie Beugnot (1788–1840).

[3] His father was a general in the First French Empire and earned a well deserved reputation in the battles of Austerlitz, Eylau, Friedland and Essling.

[2] Napoléon Joseph Curial was admitted as a page to King Louis XVIII of France, then at the age of 16 entered the École spéciale militaire de Saint-Cyr.

[4] After the July Revolution of 1830 Curial retired from the army and devoted himself to agriculture and horse breeding.

[5] In the Assembly Curial voted to maintain the guarantee of newspapers, against the right to work, against the progressive tax, for the amendment of Prosper Duvergier de Hauranne on the two Chambers, against the Jules Grévy amendment on the presidency, for military replacement, for the Rateau proposal, against reduction of the salt tax and for suppression of clubs.