Hawaii is the only U.S. state that was once a kingdom with its own monarchy. The only real royal palaces in the United States are in Hawaii. The Iolani Palace was completed in 1882, during the reign of David Kalakaua, the last king of Hawaii. It had electricity years before the White House. The first King of Hawaii Was King Kamehameha I, and the last to rule was Queen was Liliuokalani. See the related link for further information.
The original colonies were all ruled by English Kings.
Alaska
Republic: When a country was once ruled by a king or queen
This is a guess rather than solid fact - Hawaii. A monarchy government was in place until the US added Hawaii as a territory.
No, Samoa never ruled Fiji in the olden days or colonial era. King Ma'afu once ruled the Lau Group but he is from Tonga.
Hawaii
Montezuma
Zambia was once ruled by Great Britain.
Both Re and Osiris once ruled Egypt in myths.
Quebec
Yes Egypt was ruled by Britain seven years later Egypt declares independence( fu'ad i is named king)