Final answer:
Luther Severance, as the first U.S. Commissioner to the Kingdom of Hawaii, likely spoke with King Kamehameha III about diplomatic relations and trade, setting the stage for future American interests and political events in Hawaii.
Step-by-step explanation:
King Kamehameha III was approached by Luther Severance regarding several matters. Notably, Luther Severance was the first U.S. Commissioner to the Kingdom of Hawaii, sent by the United States to engage with the Hawaiian monarchy about diplomatic relations. His discussions with King Kamehameha III would have likely touched upon issues pertaining to trade, diplomatic relations, and potentially the desires of the United States in the region, given the strategic interests of the U.S. in Hawaii during that period. Over time, the relationships that were established through such initial contacts eventually affected the fate of Hawaii's monarchy and its sovereignty, leading to the political turmoils of the 1890s where American planters and businessmen played key roles in the overthrow of the Hawaiian kingdom.