How was Auguste Beernaert awarded the Nobel Prize Peace?

Name: Auguste Beernaert.
Country: Belgium.
Date of Birth: 26 July 1829.
Died: 6 October 1912.
Known as: Prime Minister and Inter-Parliamentarian, Member of Cour Internationale d’arbitrage at the Hague.
Noble Prize Year: Nobel Prize for Peace in 1909, for his work at the Permanent Court of Arbitration.