Wincenty Danilewicz (1787 – 23 March 1878) was a Chevau-léger in the Napoleonic campaign, secretary of Chancellery of Senat in Congress Poland, chief archivist of heraldric administration of Congress Poland in Warsaw.

He was a member of the Ostoja Danielewicz family and served as a Chevau-léger in the Napoleonic campaign, for which he was awarded the French Order of Legion of Honour[1][2] and Saint Helena Medal.

[3] In 1815 he returned home, and started to work as a secretary of Chancellery of Senat in Congress Poland.

Then he worked in the archive of heraldry administration of Congress Poland in Warsaw.

His great-grandson Maciej Masłowski wrote (1957), that in Wincenty testament (1859) thirty volumes of his memoirs were also mentioned.