FERDINAND, Franz, Archduke (1863-1914). Autograph letter signed ("Franz"), in pencil, in Hungarian, to Velicogna. Cannes, 23 March, [no year]. 1 page, 8vo, on a bifolium with integral blank, a few light pencil notes in margin verso of blank leaf. The heir to the Austro-Hungarian Empire writing his accountant secretary: "I forgot to give you the order that His Excellency Count Truan should naturally receive the same emoluments as Count Wurmbrand, and that these should be payable to him from the moment of taking his post."