She put a large chunk of her money into a trust fund, to be split between all her great-grandchildren, but with the agreement that Prince Harry would get more than William. The logic behind the Queen Mother's decision is based on how finances within the royal family work. When the Queen dies and Prince Charles becomes king, William will become the new Prince of Wales. Prince Harry on the other hand, won't get any of this. After claiming he had been cut off financially by the royal family after quitting, he said he, Meghan and Archie had relied on that money.
Source: Daily Mirror March 30, 2021 06:58 UTC