Walenty Stefański (12 February 1813 in Śródka, Poznań County - 30 June 1877 in Pelplin) was a bookseller and publisher from the Kingdom of Prussia.
He was also a political activist and co-founder of the Polish League (Liga Polska).
Son of a fisherman, Stefański came from a lower-class family and was mostly self-educated.
As a teenager he took part in the November Uprising in Congress Poland against Russian rule.
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