Sikhs V's Sikhs: The MURDER of Chand Kaur (1802) Queen of Punjab

Maharani Chand Kaur (1802 – 11 June 1842) was briefly regent of the Sikh Empire. She was the wife of Maharaja Kharak Singh and mother of Nau Nihal Singh, her only son.
She had made an enemy of Dhian Singh, who replaced her servants, who killed her on 11 June 1842 by smashing her head in with wooden pikes
https://en.wikipedia.org/wiki/Chand_Kaur

Maharaja Kharak Singh (22 February 1801 – 5 November 1840), was a Sikh ruler of the Punjab and the Sikh Empire. He was the eldest son of Maharaja Ranjit Singh and Maharani Datar Kaur. He succeeded his father in June 1839
https://en.wikipedia.org/wiki/Kharak_Singh

Nau Nihal Singh
https://en.wikipedia.org/wiki/Nau_Nihal_Singh

Maharani Mehtab Kaur (1782 – 1813) was the first wife of Maharaja Ranjit Singh,
https://en.wikipedia.org/wiki/Mehtab_Kaur

The encyclopedia of Sikhism : over 1000 entries
By H. S. Singha · 2000
https://www.google.co.uk/books/edition/The_Encyclopedia_of_Sikhism_over_1000_En/gqIbJz7vMn0C?hl=en&gbpv=0