![pastnow on Twitter: "BREAKING: Britain, Russia, Austria and Prussia sign the Quadruple Alliance Treaty in Paris. Busy day! — Nov 20 1815. https://t.co/qGg9hqw8NS" / X pastnow on Twitter: "BREAKING: Britain, Russia, Austria and Prussia sign the Quadruple Alliance Treaty in Paris. Busy day! — Nov 20 1815. https://t.co/qGg9hqw8NS" / X](https://pbs.twimg.com/media/CUTjBs6WsAAjOEL.jpg)
pastnow on Twitter: "BREAKING: Britain, Russia, Austria and Prussia sign the Quadruple Alliance Treaty in Paris. Busy day! — Nov 20 1815. https://t.co/qGg9hqw8NS" / X
![Alt Hist.) The Flag for the Quadruple Alliance between the American Empire, German Empire, Kingdom of Bulgaria and Austro-Hungarian-Romanian Union. : r/vexillology Alt Hist.) The Flag for the Quadruple Alliance between the American Empire, German Empire, Kingdom of Bulgaria and Austro-Hungarian-Romanian Union. : r/vexillology](https://preview.redd.it/ycs0axav8pc11.png?width=640&crop=smart&auto=webp&s=70ee768ef194a58cb43f756f1159691af2a51f22)
Alt Hist.) The Flag for the Quadruple Alliance between the American Empire, German Empire, Kingdom of Bulgaria and Austro-Hungarian-Romanian Union. : r/vexillology
![La Quadruple Alliance Anonyme/chez Loysel. « la Quadruple Alliance ». Aquapointe, 1801. Paris, musée Carnavalet Photo Stock - Alamy La Quadruple Alliance Anonyme/chez Loysel. « la Quadruple Alliance ». Aquapointe, 1801. Paris, musée Carnavalet Photo Stock - Alamy](https://c8.alamy.com/compfr/2b8m3er/la-quadruple-alliance-anonyme-chez-loysel-la-quadruple-alliance-aquapointe-1801-paris-musee-carnavalet-2b8m3er.jpg)
La Quadruple Alliance Anonyme/chez Loysel. « la Quadruple Alliance ». Aquapointe, 1801. Paris, musée Carnavalet Photo Stock - Alamy
![Livre : La quadruple alliance, Mémoires ou Opinion sur les affaires de mon temps, écrit par Charles-Maurice de Talleyrand-Périgord - Paleo Livre : La quadruple alliance, Mémoires ou Opinion sur les affaires de mon temps, écrit par Charles-Maurice de Talleyrand-Périgord - Paleo](https://www.lalibrairie.com/cache/img/livres/521/9782849092521.jpg)