Should we be ashamed of ourselves? Two events involving the Royal Family are the subject of thousands of social media messages and some far-fetched theories.
Double royal riddle sparks fever of theories

Glossary
Buckingham Palace - The home of Britain's king or queen.
Sorrow - Sadness.
Memorial service - A service to remember the life of somebody who has died.
Tragedy - An event that causes a huge amount of suffering and sadness.
Suspicious - The possibility of something being wrong or illegal.