In 1815, Russians built Hawaii's first [[Orthodox Church]]; the [[Church of Russia|Russian Orthodox ]] chapel at Fort Elizabeth. On the Island of Kaua'i, three Russian forts were built: Fort Alexander, Fort Barclay, and [[Fort Elizabeth]]. Fort Alexander also housed a small Orthodox chapel, but Fort Elizabeth was the trading base for the new Russian-American Company in Hawaii. When King Kaumuali'i of Kaua'i ceded his kingdom to King Kamehameha the Great in 1816 following the tsar's refusal to annex Kaua'i due to political troubles in Russia, the forts were also ceded, and the Hawaiian Islands become one unified kingdom. The chapels ultimately fell into disrepair after Calvinist missionaries from the United States landed in 1820 after the death of King Kamehameha I.