Johan Rudolf Thorbecke ( 1798 -- 1872 ) wrote the Dutch Constitution in April 1848 in his house at Garenmarkt 9 in Leiden .
Perhaps the most important piece of Dutch history contributed by Leiden was the Constitution of the Netherlands .
Johan Rudolf Thorbecke ( 1798 -- 1872 ) wrote the Constitution of the Netherlands   in April 1848 in his house at Garenmarkt 9 in Leiden .
Perhaps the most important piece of Dutch history contributed by Leiden was the Constitution of the Netherlands .