Srinagar, March 10 -- Seoul, March 10 () LG Group Chairman Koo Kwang-mo has been sued by his family over inheritance he received more than four years ago, in a dispute that is feared to shake management of the country's fourth-largest chaebol (a large family-owned business conglomerate).

Koo's stepmother and two stepsisters filed a lawsuit with the Seoul Western District Court on February 28 to request the cancellation of inheritance that took place following the death of Koo Bon-moo, the late LG Group chairman, in May 2018.

Koo Kwang-mo is the nephew of the late chairman, who adopted him in 2004 after his only son died in a car accident, and became LG chairman in June 2018, reports Yonhap news agency.

LG Group carries the long-held tr...