Slightly different take on the Princess Diana murder and Dodi al Fayed. It wasn't to prevent a marriage , but to create one between the Crown and the Saudis. A sacrificial Union.
Princess Diana found out about the Saudi's child, sex trafficking. Dodi's uncle was a huge arms,drugs and probably child traffricker, Adnan Khashogg. Died last year of Parkinson's type symptoms .
She was going to try to take refuge in Brasil thru her best friend , Lucia Flecha de Lima.
She had became a trusted friend of Diana in the early 1990s when her husband, Paulo Tarso Flecha de Lima, was Brazilian Ambassador to the UK.
Close friends say Diana was not serious about Dodi yet , they had not been together that long.
The Crown agreed to sacrifice Diana and the Saudis agreed to sacrifice Dodi in order to keep the horror hidden. Hence the blood marriage.
We do not know if Diana knew if the Crown was connected to it or not. Don't know the extent to what she knew. So, perhaps Diana was sacrificed purely to protect the Saudis and that may be the watershed event