Here are three blog posts with new research discoveries on Mauro Giuliani. The blog is called “Musicological Trifles and Biographical Paralipomena,” and it mainly the work of Dr. Michael Lorenz, arguably the finest Austrian archival scholar of his generation. Also check out the many other posts on Mozart, Hayden, Liszt, Chopin, etc. The material here is dense and specialized, so there is probably more detail here than most readers will want.
The posts concerning Giuliani are as follows:
1) http://michaelorenz.blogspot.com/2015/0 ... ienna.html
On Giuliani's Viennese years, which offers numerous new archival insights and corrections to his biography. Also note the rather tense discussion at the end of the post with fellow scholars.
2) http://michaelorenz.blogspot.com/2015/0 ... cdote.html
On the composer Anton Gräffer’s anecdote describing Giuliani at a social gathering, poking fun at the Bohemian priest and composer Joseph Gelinek, who claimed that Giuliani's German was not good enough to improvise a German verse and paid the price for his error. Giuliani is described as a highly educated, handsome man who was quite popular with the ladies of Viennese society. Gräffer composed and published music for guitar.
3) http://michaelorenz.blogspot.com/2016/1 ... ce-at.html
On Giuliani's residence in Vienna