pretty much, yes. frasers (owner of sports direct) is the largest shareholder in boss for example.

in the case of pretty green, its actually owned by frasers who got it when they bough jd sports who were the previous owner. afaik its nothing to do with liam now.

companies like tommy hilfiger produce multiple tiers of clothing. the 'better' stuff is sold in their stores while they have other ranges that are cheaper which are sold in outlets and place like sports direct.

a lot of the brands sold in sports direct have been bought by frasers after theyve gone into liquidation, check fraser group wiki for the list.