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MADRID, SPAIN - JUNE 13: King Felipe VI (r) talks with King Willem-Alexander (l) of the Netherlands on his arrival at a luncheon at the Royal Botanical Gardens, June 13, 2023, in Madrid, Spain. The luncheon is being held for the 375th anniversary of the establishment of Diplomatic Relations between the Netherlands and Spain and the Contribution of Hydrogen Valleys to the Decarbonization of Europe. The lunch is one of the events in which King Willem-Alexander will participate to learn about several hydrogen projects in Spain. The focus of the visit is hydrogen and its future use in energy production. The Dutch monarch's visit to Spain includes trips to Castilla-La Mancha and Andalusia. (Photo By Isabel Infantes/Europa Press via Getty Images)