It was the second-to-last Jamboree for the founder of Scouting, Robert Baden-Powell. Baden-Powell and Hungarian head of state, Regent Horthy, addressed the Scouts from the grandstand built to accommodate over 5000 guests during an opening ceremony at the rally ground. Regent Horthy told the Scouts.

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Scouts! You have come to Hungary from all parts of the world to testify to the magnificent and uplifting powers of brotherhood represented by Scouting. The noble ties of friendship will, I believe, become even stronger among you through this Fourth World Jamboree. I am convinced that the Jamboree will do much toward the promotion of good-will and peaceful cooperation, for the general good of humanity. The Hungarian nation offers you with love these wood-girt fields for your camping. The Hungarian nation welcomes you and your leader, the founder of the World Scout Movement, Lord Baden Powell. Welcome to you all! I hope you will feel at home!