François Joseph Albert Léon de la Fontaine,, was a Luxembourgish lawyer, politician and botanist.
Career
From 14 December 1866 until 18 June 1867 he was Director General (Minister) of Justice, and initially also of Finances in the Tornaco Ministry. He was particularly interested in ferns. French Collart (1827–1893), the daughter of Charles Joseph Collart (1775–1841), on 27 February 1852.
Membership
On 21 May 1848 he became a member of the Constituent Assembly, where he replaced Charles Munchen, who was sent to the Frankfurt National Assembly. From 1867 he was a member of the Société des Sciences naturelles the later scientific section of the Institut grand-ducal, a founding member of the botanical society (Société botanique).