About the name Juancarlos
Juancarlos belongs to the English & American tradition. Its roots are documented, even though its precise meaning is not recorded in the standard references — an honest gap we prefer to a confident guess.
In the United States, Juancarlos first appears in Social Security records in 1963. It climbed to its best-ever rank of #1049 in 2004, and in 2024 52 babies received the name — 4,006 in total since 1880. Those are the official counts, not estimates.