Pylyp Orlyk

Pylyp Orlyk, a Zaporozhian Cossack, went into exile after Tsar Peter I won the Battle of Poltava and conquered Ukraine.
He was declared the Ukrainian Hetman in exile after the death of Hetman Ivan Mazepa in 1710.
He was the first to write a truly democratic constitution with separation of powers.
There is a legend in Ukraine that Pylyp Orlyk exported the Ukrainian cossack exchequer to England and invested money for future generations in an independent Ukraine.
But later nobody could remember the password!!