I am reporting the Beethovenian Breviary by Carlo Alberto Pagni, which you can appreciate here:
http://www.lvbeethoven.it/Breviario_Beethoveniano/Breviario_Beethoveniano00.html
His son, the very kind Marco, has written a brief and effective introduction to the work of his late parent.
Enjoy your reading; in fact, the summary style is perfectly in line with the core principles of Beethovenian bibliography according to Poggi-Vallora, to be clear.
I take the liberty of copying some words from the introduction here:
«This book aims, first and foremost, not to fatigue the reader. It is written in such a way that one should not have to read it all in one breath, page after page, chapter after chapter, looking for a story and a conclusion, as one must necessarily do with biographical or musicological books»
