Duke Paoa Kahinu Mokoe Hulikohola Kahanamoku (August 24, 1890 – January 22, 1968), is generally regarded as the person who popularized the modern sport of surfing. He was also an Olympic champion in swimming.
The name "Duke" is not a title, but a given name. He was named after his father, Halapu Kahanamoku, who was christened "Duke" by Bernice Pauahi Bishop in honor of Prince Alfred, Duke of Edinburgh, who was visiting Hawaii at the time of the elder man's birth in 1869. The younger "Duke," as eldest son, inherited the name.
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