Background
Three weeks before his 73rd birthday Frey-Herose died. The Frey-Herose road in Aarau was called in his honor. Here lies the assembly building of the Masonic Lodge "Brotherly Loyalty," whose member he had been. The testament of Frey-Herose was in the State Archives of Aargau.
Career
He was the Chief of German General Staff in Sonderbund War and during the Neuchatel Crisis. For eleven years, he headed the government of the canton of Aargau, in 1848 he was elected to represent the liberal-radical faction in the Federal Council. He made a significant contribution to the elimination of internal tariffs and concluded trade agreements with many countries. Frey-Herose was President of Confederation in 1854 and 1860, and Vice President in 1853 and 1859. Privately, he showed a great commitment to the promotion of education and culture.
On 16 November 1848 Frey-Herose was elected by the Federal Assembly to the Federal Council. From 1855 to 1859 Frey-Herose was head of the Military Department.