condominium ruled alternately by France and Spain
via Wikipedia infobox
Louis XIV of France and Philip IV of Spain meeting on Pheasant Island for the Treaty of the Pyrenees. Pheasant Island (French: Île des Faisans/Île de la Conférence, Spanish: Isla de los Faisanes, Basque: Konpantzia, Faisaien Uhartea Konferentziako Uhartea, Faisaien Irla) is an uninhabited river island located in the Bidasoa river, located between France and Spain, whose administration alternates between the two nations every six months.
Etymology
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).