Jaakko Pentinpoika Ilkka (1545, Ilmajoki

Ilmajoki

Ilmajoki is a municipality of Finland.It is located in the province of Western Finland and is part of the Southern Ostrobothnia region. The population of Ilmajoki is and the municipality covers an area of of which is inland water...

 – January 27, 1597) was a Finnish

Finland

Finland , officially the Republic of Finland, is a Nordic country situated in the Fennoscandian region of Northern Europe. It is bordered by Sweden in the west, Norway in the north and Russia in the east, while Estonia lies to its south across the Gulf of Finland.Around 5.4 million people reside...

 yeoman

Yeoman

Yeoman refers chiefly to a free man owning his own farm, especially from the Elizabethan era to the 17th century. Work requiring a great deal of effort or labor, such as would be done by a yeoman farmer, came to be described as "yeoman's work"...

 and trader. He is remembered for leading the Cudgel War

Cudgel War

The Club War was a 1596/97 peasant uprising in the kingdom of Sweden against exploitation by nobility and military in what is today Finland...

 of 1596; at its end, and the peasants' defeat on January 1–2, 1597, he escaped, but was soon recaptured and executed for his part in the fighting.

Ilkka was the subject of an opera

Jaakko Ilkka (opera)

Jaakko Ilkka is an opera by Finnish composer Jorma Panula; it deals with the eponymous peasant leader of the Cudgel War of 1596, and was composed between 1977 and 1978....

 by Jorma Panula

Jorma Panula

Jorma Panula is a Finnish conductor, composer, and professor of conducting.Panula is a graduate of the Sibelius Academy, where he studied the organ, church music and conducting...

, composed between 1977 and 1978.

Genetics

Y-DNA: N1b*-E4a (data inferred from the result of one likely lineage)