King Juan Carlos is in Cuba this week to attend funeral services for former Cuban President Fidel Castro.
Spain has long had ties with its former colony and, now that the island is becoming more open, Spain wants to secure its position there.
Don Juan Carlos has been a point-person for King Felipe in Latin America. Don Felipe used to be that point-person when he was Prince of Asturias.
King Felipe, meanwhile, has spent recent days on a state visit to Portugal, a key Spanish ally.
King Felipe and Queen Letizia have made several stops in the country and met with several local and national leaders.
Tomorrow the King is scheduled to meet with the president of the European Commission in Madrid.