At age 20, Ranjit Singh took the title of Maharaja after consolidating control over Lahore and surrounding Sikh territories, founding the Sikh Empire. Over the following decades he built one of the most formidable indigenous military powers in South Asia, resisting both Afghan incursions and, for a time, British expansion.
Ranjit Singh had captured Lahore in 1799 at just 19 years old, exploiting the fractured state of Punjab's various Sikh confederacies (misls) following the decline of Mughal and Afghan control. His coronation formalized a rule that would eventually stretch from the Khyber Pass to the borders of Tibet, encompassing Kashmir, Peshawar, and much of the Punjab plain.
Known as the 'Lion of Punjab,' he built a modernized army, the Fauj-i-Khas, trained partly by European mercenary officers and equipped with artillery that rivaled contemporary European forces. He was famously pragmatic in religion and governance, employing Muslims, Hindus, and Sikhs alike in his administration and maintaining friendly, if watchful, relations with the British East India Company via the 1809 Treaty of Amritsar.
His empire, one of the last major independent powers on the subcontinent, collapsed into infighting after his death in 1839 and was annexed by the British following the Anglo-Sikh Wars in 1849—but his 40-year reign remains a foundational chapter in Sikh and Punjabi history.