Nicholas I of Montenegro

In the year 1900 AD, Nicholas I of Montenegro held power in Montenegro.

Who else ruled in 1900 AD

Abdul Hamid II — Ottoman Empire
Victoria — United Kingdom
Wilhelm II — Germany
Nicholas II — Russia
Franz Joseph I — Austria-Hungary
Umberto I — Italy
Maria Christina (regent for Alfonso XIII) — Spain
Guangxu Emperor — Qing China
Emperor Meiji — Japan
Gojong — Korean Empire
Mozaffar ad-Din Shah — Persia
Menelik II — Ethiopian Empire
Abd al-Rahman bin Atiku — Sokoto Caliphate
King Chulalongkorn — Thailand
Leopold II of Belgium — Belgium
Wilhelmina of the Netherlands — Netherlands
Oscar II — Sweden-Norway
Christian IX of Denmark — Denmark
Carlos I of Portugal — Portugal
George I of Greece — Greece
Carol I of Romania — Romania
Alexander I of Serbia — Serbia
Ferdinand I of Bulgaria — Bulgaria
Adolphe of Luxembourg — Luxembourg
Abbas II of Egypt — Khedivate of Egypt
Abdelaziz of Morocco — Morocco
Abdur Rahman Khan — Afghanistan
Prithvi Bir Bikram Shah — Nepal
Hamoud bin Mohammed — Zanzibar
Daudi Cwa II — Buganda
George Tupou II — Tonga
Johann II — Liechtenstein
Albert I — Monaco
Faisal bin Turki — Muscat and Oman
Mubarak Al-Sabah — Kuwait
Ibrahim of Johor — Johor
Lerotholi — Basutoland
Ugyen Wangchuck — Bhutan
Jamalul Kiram II — Sultanate of Sulu
Norodom of Cambodia — Kingdom of Cambodia
Zakarine — Luang Prabang
Ngwane V — Swaziland
Isa ibn Ali Al Khalifa — Kingdom of Bahrain
Jassim bin Mohammed Al Thani — Qatar
Zayed bin Khalifa Al Nahyan — Trucial States
Abdul Hamid Halim of Kedah — Kedah
Idris Shah I of Perak — Perak
Hashim Jalilul Alam Aqamaddin — Brunei
Lewanika — Barotseland
Abdulaziz bin Mutib — Emirate of Jabal Shammar
Sulaiman of Selangor — Selangor
Muhammad of Negeri Sembilan — Negeri Sembilan
Zainal Abidin III — Terengganu
Thutob Namgyal — Kingdom of Sikkim
Yuhi V Musinga — Kingdom of Rwanda
Mwezi IV Gisabo — Kingdom of Burundi
Kasagama — Kingdom of Toro
Kabalega — Kingdom of Bunyoro
Ali Dinar — Sultanate of Darfur

See the Rulers Map for 1900 AD