Convention between Great Britain and the United Netherlands… (1814)
“ The native inhabitants and aliens of whatever nation or condition they may be, in those countries which are to change Sovereigns, as well in virtue of the present Convention as of subsequent arrangements to which it may give rise, shall be allowed a period of six years, reckoning from the exchange of the ratifications, for the purpose of disposing of their property, if they think fit, whether it be acquired before or during the late war, and of retiring to whatever country they may choose. ”
