The entire life of Bhai Mani Singh Ji is a lighthouse for the Sikhs. Nine of his ten brothers, seven of his sons and many grandsons laid down their lives for the causes so dear to the Sikh Gurus. His martyrdom will keep inspiring Sikh generations for all time to come emulate his personal life and unflinching faith in Sikh ideals.

http://singhstation.net/2014/07/bhai-mani-singh-ji-shaheed/