|Prime Minister of Luxembourg|
23 September 1853 – 26 September 1860
|Preceded by||Jean-Jacques Willmar|
|Succeeded by||Victor de Tornaco|
|Born||27 March 1802|
|Died||5 October 1874 (aged 72)|
He received his Doctorate of Laws in 1823 from the University of Liège. The year after, he registered at the bar of the court of first instance of Diekirch. In 1831 he was a delegate for Diekirch at the Belgian National Congress in Brussels, and helped to draft the new Belgian constitution.
In 1836-1837 he was a member of the provincial council, and in 1841 became a member of the Assembly of Estates. In 1843-1848 he was a member of the cabinet and in 1848 of the Constituent Assembly. From 1 August to 2 December 1848 he became Administrator-general of communal affairs in the de la Fontaine Ministry.
Simons' time as head of government saw the revision of the constitution of October 1856, which the King-Grand-Duke had pushed through against the wishes of the parliament, which strengthened his powers while curtailing those of the parliament, and which imposed the Council of State as a control mechanism on the already weakened parliament. This period also saw the opening of the first railway line in Luxembourg (4 October 1859) and the founding of the first banks, the Banque Internationale à Luxembourg and the Banque et Caisse d'Épargne de l'État.
Simons resigned on 26 September 1860, as opposition to his "coup d'état" government grew too strong in parliament after new elections.
- Thewes (2011), p. 27
- Thewes, Guy (2011). Les gouvernements du Grand-Duché de Luxembourg depuis 1848 (PDF) (in French). Luxembourg: Service information et presse du gouvernement. ISBN 978-2-87999-212-9. Archived from the original (PDF) on 2017-01-11. Retrieved 2017-10-23.
| Prime Minister of Luxembourg
Baron de Tornaco
| Director-General for Foreign Affairs|
| Director-General for Justice
G T I de la Fontaine
| President of the Council of State