Josef Julius Wecksell (19 March 1838 – 9 August 1907) was a Finnish poet and playwright.
His historic drama Daniel Hjort was first performed in November 1862 at the Swedish Theatre (Nya Teatern) in Helsinki.
It later formed the basis for the opera Daniel Hjort by composer Selim Palmgren (1878–1951) which was performed first time on April 21, 1910.
[6][7] He suffered from severe melancholy from the early 1860s and was first committed to a private psychiatric hospital in Endenich near Cologne.
In 1865, he entered Lappvik asylum (Lapinlahden sairaala) in the Lapinlahti suburb of Helsinki where he remained until his death.