Henri Eugene Sée, 1911 Encyclopedia Britannica (1911)
“ In 1489 the French army invaded Brittany. In order to protect her independence, Anne concluded an alliance with Maximilian of Austria, and soon married him by proxy (December 1489) . But Maximilian was incapable of defending her, and in 1491 the young duchess found herself compelled to treat with Charles VIII. and to marry him. The two sovereigns made a reciprocal arrangement as to their rights and pretensions to the crown of Brittany, but in the event of Charles predeceasing her, Anne undertook to marry the heir to the throne. ”
