Experts say that during royal visits the queen is given a secret name to maintain secrecy during her visit.
Upon check-in at hotels, it is very important that the Queen keeps her identity confidential while in the security line.
Thus his security team allegedly gives information related to him with a code name.
Royal historian Hugo Vickers later appeared to confirm the news, saying: "It is highly likely.
"The purpose of any ridicule is to be anonymous and memorable.
“If it could also be a little mischievous and therefore even more memorable, it would make sense. Although the S could certainly stand for sovereign.”