The individual in international law — Nationality — Acquisition of — As affected by change of sovereignty — Cession of territory — Whether Willstatt ceded in 1805 by Elector of Baden to Napoleon I — Whether persons born in Willstatt acquired French nationality — The law of France.

Treaties — Interpretation of — Agencies of — Whether municipal courts may interpet diplomatic treaties — Whether official Government interpretation must be adopted — The law of France.

State territory — In general — Acquisition of territorial sovereignty — Cession — Whether Willstatt ceded in 1805 by Elector of Baden to Napoleon I — Whether persons born in Willstatt acquired French nationality — The law of France.