تصغير|الملك ليوبولد الأول
'''ليوبولد الأول''' ولد بتاريخ 16 كانون الأول/ديسمبر 10 كانون الأول/ديسمبر 1865 في لاكن في بلجيكا. 

اسمه الكامل: ليوبولد جورج كريستيان فريدريك ،  هو أول ملوك بلجيكا حكم بين عامي (1831 و 1865)، أسس لمملكته الحديثة نظام برلماني جديد وعمل على إثبات حضورها خارجياً بفضل دوره البارز كشخصية رئيسية في الدبلوماسية الأوروبية، عزز ذلك موقف بلجيكا الحيادي الثابت بين مختلف أطراف العالم الغربي.  

== حياته ==
هو الابن الرابع لفرانسيس دوق ساكس كوبورغ سالفيلد، خدم ليوبولد في جيوش الحلفاء ضد قوات جورج الرابع. وعلى الرغم من وفاة الأميرة شارلوت عام 1817 فأن ليوبولد مكث في بريطانيا حتى عام 1831، العام الذي قبل فيه انتخابه ليصبح أول ملك على بلجيكا بعد ان كان قد رفض في العام السابق تاج اليونان. 

باشر فور تسلمه مملكته الجديدة على تقوية الجيش والقوات المسلحة، وبمساعدة من ويليام الأول والذي رفض حتى عام 1838 أن يعترف ببلجيكا كمملكة مستقلة.  

عام 1836 سمح للمدن الكبرى والمناطق الريفية بالتمتع بقدر كبير من الاستقلال الذاتي، ووقع ليوبولد اتفاقيات تجارية مع بروسيا عام 1844 وفرنسا عام 1846 وحافظ على وضع بلاده الحيادي في أوروبا خصوصا أثناء حرب القرم (1853- 1856). 

وبعد صعود نظام مقاطعة أنتفيرب والتي اكتملت عام 1868.   

{{Infobox_Monarch | name =Leopold I
| title          =King of the Belgians
| image          =200px 
| caption        =Painting by Sir Thomas Lawrence
| reign          =21 July, 1831 &ndash; 10 December, 1865</br>( years)
| coronation     =
| predecessor    =first king
| successor      =Leopold II
| heir           =
| consort        =i) Charlotte of Wales <br>ii) Louise-Marie of France
| issue          =Prince Louis-Philippe <br> Leopold II <br> Prince Philippe <br> Empress Carlota of Mexico
| royal house    =Wettin (Saxe-Coburg-Gotha line)
| royal anthem   =
| father         =Francis, Duke of Saxe-Coburg-Saalfeld
| mother         =Countess Augusta Reuss
| date of birth  =
| place of birth =Coburg, Bavaria
| date of death  =
| place of death =Laeken/Laken, Belgium
| buried         =
|}}

'''Leopold I''' (''Leopold George Christian Frederick of Empress Carlota of Mexico.

==Early life== 
He was the youngest son of Coburg. He was also an uncle of Queen Victoria of the thumb|left|Leopold Saksen-Koburg as a Russian general. [[George Dawe's portrait from the Military Gallery of the Winter Palace.]]

In Imperial Regiment in Napoléon offered him the position of adjutant, but he refused. Instead he took up a military career in the Imperial Russian cavalry. He campaigned against Napoléon, and distinguished himself at the Battle of Kulm at the head of his cuirassier division. In 1815, Leopold reached the rank of lieutenant general in the Imperial Russian Army.

In British field-marshal and Knight of the Garter. On Empress Carlota of Mexico.

On 2 July, 1829, Leopold participated in nuptials of doubtful validity (a private marriage-contract with no religious or public ceremony) with the actress Caroline Bauer, created ''Countess of Montgomery'', a cousin of his advisor, Christian Friedrich Freiherr von Stockmar. The 'marriage' reportedly ended in 1831 and the following year he married Louise-Marie.

==King of the Belgians==

After Belgium asserted its independence from the Netherlands on 4 October 1830, the Belgian National Congress, considered several candidates and eventually asked Leopold to become king of the newly formed country. He accepted and became "King of the Belgians" on 26 June, 1831. He swore allegiance to the constitution in front of the Saint Jacob's Church at Coudenbergh Place in Brussels on 21 July 1831. This day became the Belgian national holiday. Jules Van Praet would become his personal secretary.    
thumb|left|225px|King Leopold I, Queen Louise-Marie, Crown Prince Leopold, Prince Philippe, Princess Marie-Charlotte    
    
Less than two weeks later, on Treaty of London establishing Belgium's independence.    
    
With the opening of the railway line between Brussels and Mechelen on 5 May, 1835, one of King Leopold's fondest hopes&mdash;to build the first railway in continental Europe&mdash;became a reality.    

{{Infobox Monarch styles|
royal name=King Leopold I of the Belgians|
image=50px|
dipstyle=His Majesty|
offstyle=Your Majesty|
altstyle=Sire|}}
    
In Queen Victoria, the daughter of his sister, Princess Victoria of Saxe-Coburg-Saalfeld, to his nephew, Prince Albert of Saxe-Coburg and Gotha, son of his brother, Ernst I, Duke of Saxe-Coburg and Gotha. Even before she succeeded to the throne, Leopold had been advising the then-Princess Victoria by letter, and after her accession, he was one of the great influences on her in the early days of her monarchy.

In Louis-Philippe from the French throne in 1848. Belgium remained neutral, mainly because of Leopold's diplomatic efforts.    