If the closest heir happens to be a woman, the pact was silent about whether her husband receives rights or not.
The pact was agreed to be applied to "Imperial fiefs" which meant those territories owned or acquired in the then Holy Roman Empire.
The pact thus in 1890 determined the succession of the Grand Duchy of Luxembourg, a territory acquired into the dynasty only after the pact was sealed, but in exchange for the handing of some of the Nassau-lands of the Ottonian branch to Prussia and that at the time became a member of the German Confederation, a body that was regarded as the successor to the Holy Roman Empire.
The pact did not apply to the succession in the Kingdom of the Netherlands, a state not regarded as formerly German.
In April 1907 the Grand Duke decreed (approved in July 1907 by legislature of Luxembourg and thereafter enacted) amendments to the house law of Nassau.