Diego Maradona, the Argentine footballer taken under Castro's wing to show off Cuba's healthcare system when he was battling drug addiction, described Castro as being his "second father".
"Since recovering from my illness, I replay his words of support in my head all the time," said Maradona before the ceremony. "The world has lost a true leader."
The footballer was a friend of Castro's since his first visit to the island in 1986. "He cared so much about Cubans. Sometimes we'd sit up talking about football until four or five in the morning, and the next day I'd be sleeping late - but he'd be up early working for the people."
Throughout the last week, those people were out in force, as the Cuban Government staged a show of unity and devotion in a final farewell to "El Comandante".
Streets across the country were paralysed as "the caravan of freedom" passed through, retracing the steps of Castro's victorious march from Santiago into Havana in 1959. Soldiers guarded the bridges overnight before the cortege passed.