"Ferdinand I (German: Ferdinand I.;[how?] 19 April 1793 – 29 June 1875) was the Emperor of Austria from 1835 until his abdication in 1848. As ruler ...
of Austria, he was also President of the German Confederation, King of Hungary, Croatia and Bohemia (as Ferdinand V), King of Lombardy–Venetia and holder of many other lesser titles (see grand title of the Emperor of Austria). Due to his rocky, passive but good-intended character, he gained the sobriquet The Benign (German: Der Gütige) or The Good (Czech: Ferdinand Dobrotivý).
Ferdinand succeeded on the death of his father Francis II and I on 2 March 1835. He was incapable of ruling his empire because of his mental deficiency, so his father, before he died, made a will which promulgated that Ferdinand should consult Archduke Louis on all aspects of internal policy and urged him to be influenced by Prince Metternich, Austria´s Foreign Minister." - (en.wikipedia.org 31.01.2020)