Michał Piekarski
Michał Piekarski (Polish pronunciation: [mixaw piɛkarski]; before 1597 – 27 November 1620), also known as Michael Piekarski, was a Polish petty nobleman and landowner, who attempted to assassinate King Sigismund III in 1620. == Biography == Michał Piekarski, the son of Stanisław, as a child was involved in an accident during which he severely injured his head and began to suffer mentally.