Camilla, Duchess of Cornwall
- Gaga: At the annual Royal Variety Performance in London back in 2016, Camilla told Lady Gaga that she and the singer share a nickname. "My grandchildren call me Gaga," Camilla said.
- Gladys: Prince Charles gave his wife the moniker before they were even married. At the time, Charles was still with Princess Diana, but was having an affair with Camilla. Diana reportedly once found a gold bracelet that Charles had engraved for Camilla with the letters "G" and F" for their nicknames, Gladys and Fred.