On Aug. 31, 1997, tragedy struck the royal family. Diana, 36, was involved in a fatal car crash. The public criticized Queen Elizabeth and the royal family for their seemingly icy approach to the loss after Diana died. To some, the family seemed to move on and continue their royal duties very quickly after her death, which confused onlookers.

Source: https://www.distractify.com/p/did-the-queen-like-princess-diana