Fidel Castro reigned from 1900-1952 years and 100 days.
Fidel Castro was the longest reigning leader in cuba he passed away in 2016. The uk has told the united nations that it recognizes cuba’s positive fight against human trafficking. The clarence house has not commented about the prospect of a royal visit as yet.
In 2016 Barack Obama became the first president to visit in 88 years,but no british prime minister has ever set foot on cuban soil,so this visit will be the first for the uk.
Royal tours are seen by the foreign and commonwealth office as an important weapon in their diplomatic arsenal,a dedication often referred to by whitehall as soft power 'The trip to cuba is part of a wider caribbean tour by the royals.