谁嫁给了George I of Greece？

George I (Greek: Γεώργιος Α΄, romanized: Geórgios I; 24 December 1845 – 18 March 1913) was King of Greece from 30 March 1863 until his assassination on 18 March 1913.

Originally a Danish prince, George was born in Copenhagen, and seemed destined for a career in the Royal Danish Navy. He was only 17 years old when he was elected king by the Greek National Assembly, which had deposed the unpopular King Otto. His nomination was both suggested and supported by the Great Powers: the United Kingdom of Great Britain and Ireland, the Second French Empire and the Russian Empire. He married Grand Duchess Olga Constantinovna of Russia in 1867, and became the first monarch of a new Greek dynasty. Two of his sisters, Alexandra and Dagmar, married into the British and Russian royal families. Edward VII of the United Kingdom and Alexander III of Russia were his brothers-in-law, and George V of the United Kingdom, Christian X of Denmark, Haakon VII of Norway, and Nicholas II of Russia were his nephews.

George's reign of almost 50 years (the longest in modern Greek history) was characterized by territorial gains as Greece established its place in pre-World War I Europe. Britain ceded the Ionian Islands peacefully in 1864, while Thessaly was annexed from the Ottoman Empire after the Russo-Turkish War (1877–1878). Greece was not always successful in its territorial ambitions; it was defeated in the Greco-Turkish War (1897). During the First Balkan War, after Greek troops had captured much of Greek Macedonia and Epirus, George was assassinated in Thessaloniki.

奥尔嘉·康斯坦丁诺芙娜（英語：Grand Duchess Olga Constantinovna of Russia，俄語：О́льга Константи́новна Рома́нова，國際音標：[ˈolʲɡə kənstɐnˈtʲinəvnə rɐˈmanəvə]，1851年9月3日—1926年6月18日），后来称希腊奧爾嘉王后（希臘語：Βασίλισσα Όλγα των Ελλήνων），是俄罗斯女大公，希腊王后，希腊国王乔治一世的妻子。1920年末，则短暂的摄政。

她是俄罗斯沙皇尼古拉一世的孙女，康斯坦丁·尼古拉耶维奇大公与妻子萨克森-阿尔滕堡的亚历山德拉公主的长女。她的童年在聖彼得堡、波蘭以及克里米亞度過，並在西元1867年，与表兄、希腊国王乔治一世结婚，育有五子三女，爱丁堡公爵菲利普亲王即為其孫。起初，她對於在希臘的生活有點不適應，但她迅速地在一年內學習希臘語並參與社交及慈善事業。

在這段期間，她建立了許多學校和醫院，並推動將馬太福音翻譯為現代希臘語的運動。此運動原本旨在使不黯古希臘語的傷兵能更容易理解福音，進而鼓舞他們的精神。然而；福音翻譯運動最終引發群眾憤怒，並演變成福音暴動。

1913年，在其夫婿喬治一世被暗殺後，奧爾嘉返回俄羅斯。一戰期間，她在巴夫洛夫斯克宮設立了屬於她哥哥的軍事醫院，並在1917年俄國革命時受困於此，直至丹麥大使協助她逃往瑞士。然，因為其子希臘國王康斯坦丁一世被廢黜，奧爾嘉也無法返回希臘。

1920年10月，她為了參與孫子希臘國王亞歷山大一世的葬禮而返回雅典，並攝政至其子康斯坦丁一世於一個月後再度即位。在1919年至1922年的希土戰爭後，希臘皇室因為戰敗被流放，奧爾嘉在英國、法國和義大利度過餘生。