Fryderyk Chopin. The Origins

This book summarises more than a decade of work conducted by two
researchers who set out to verify in archival sources the existing
biographical information about Fryderyk Chopin, his family and his
friends, and also to obtain new material to expand our knowledge of his
ancestors. The research covered approximately 100,000 handwritten legal
documents from Kuyavia, Mazovia and Royal Prussia, numerous printed and
cartographic sources, and also the subject literature. The majority of
sources held in Polish archives were examined, as well as information
from France and Russia.

• author: Andrzej Sikorski, Piotr Mysłakowski