We should start this topic with brothers Franz Josef (*Wien 28.4.1767, +Wien 10.7.1854) and Moritz (*Wien 19.2.1775, +Wien 29.8.1864). Franz Josef was very interesting person, he is the only one I know, who refused the Order of Golden fleece. His marriage with russian countess Alexandrina Shuvalov was unhappy, but the couple has one son, Josef.
Moritz was preceptor of Napoleon II., son of Napoleon and Marie Louise. He was very fond of music and theatre – he composed songs and minuets, was director and intendant of Hofburg Theatre.
One of brothers fathered a famous pianist Sigismund Thalberg, but I do not know who – in sources on internet I found both names, Franz Josef and Moritz. Is it known, who was real father of Sigismund Thalberg?
And do we have some pictures of this two brothers?