Mindon and his younger brother Kanaung overthrew their half brother King Pagan .
Under his half brother King Pagan , the Second Anglo - Burmese War in 1852 ended with the annexation of Lower Burma by the British Empire .
Mindon and his younger brother Kanaung overthrew their half brother King Pagan   .
Under his half brother King Pagan , the Second Anglo - Burmese War in 1852 ended with the annexation of Lower Burma by the British Empire .