https://en.wikipedia.org/wiki/Sikh_Empire

https://en.wikipedia.org/wiki/Sikhism

https://en.wikipedia.org/wiki/Ranjit_Singh First Ruler

https://en.wikipedia.org/wiki/Kharak_Singh The Heir

https://en.wikipedia.org/wiki/Nau_Nihal_Singh The Heir’s Heir

https://en.wikipedia.org/wiki/Dhian_Singh Nau Nihal Singh's Probable killer

https://en.wikipedia.org/wiki/Gulab_Singh Killer's Brother