Following these eight days, a further period of official Royal Mourning is expected to continue for 30 days. Philip will lie at rest in the castle for a period of days ahead of his funeral at St George’s Chapel. The Queen and her children and grandchildren will enter a period of mourning for their patriarch, which could last several weeks. There are various types of mourning, but Royal - also known as Court - Mourning, includes the royal family, royal households and the Queen's representatives in the UK and abroad wearing black and also using black-edged writing paper. The Duke of Edinburgh is expected to then be buried in Frogmore Gardens, in the grounds of Windsor Castle.
Source: The Nation April 09, 2021 13:41 UTC