Upon learning of the marriage, United States President Abraham Lincoln sent a letter to Wilhelm's elder brother Frederick I, Grand Duke of Baden in which Lincoln stated: "I participate in the satisfaction afforded by this happy event and pray Your Royal Highness to accept my sincere congratulations upon the occasion together with the assurances of my highest consideration".
Xena: Warrior Princess | Anne, Princess Royal | Rainer Maria Rilke | Carl Maria von Weber | Santa Maria | Maria Callas | Princess Diana | Princess Alexandra, The Honourable Lady Ogilvy | Santa Maria Capua Vetere | The Princess Bride | Maria | Princess Royal | Princess Margaret, Countess of Snowdon | Maria Theresa | Henrietta Maria of France | Princess Anne | Princess Alexandra | José María Aznar | Princess Margaret | A Little Princess | Victoria, Princess Royal | Princess Margaret Hospital | Maria Muldaur | Maria Bethânia | Princess Louise, Duchess of Argyll | Carlo Maria Giulini | Basilica di Santa Maria Maggiore | Ave Maria | Santa Maria, Bulacan | Princess Elizabeth |
Through his oldest surviving daughter Princess Maria Maximilianovna of Leuchtenberg (1841–1914), he is the grandfather of Prince Maximilian of Baden (1867–1929), Chancellor of Germany during World War I.