That is very kindly said, Yseult.
Unfortunately I do not know very much about Moritz... He was married twice, firstly to an Italian lady, Maria Anna (or Marianna) Caramelli di Castiglione-Faleta, but they did not have any children. He later married a lady by the name of Josefa Stummer, and I guess she could have been an opera singer...
...but I do not know for sure. Anyway, they had a daughter, Josefa (1814-1878). She was married no less than three times!
Her first husband was a man called Karl Johann von Frank. The second one is only mentioned in the sources I have seen by his last name, Woess. The third husband was a nobleman, Franz Födran, Ritter von Födransberg (I suppose that the German title Ritter can be translated as knight but since neither German or English is my first language I am not sure...sometimes titles are difficult to translate correctly). I remember that in some source the second husband is not mentioned at all.
I do not know if Josefa had any children.
Moritz's first wife, Maria Anna (or Marianna) did not die until 1817, which means that Josefa was born prior of her parents marriage. Maybe that could explain why there is so little information about her.
