It was named after emperor Alexander I, and built in October 1816 near Hanalei River.
[3][2] Fort Alexander had low earthwork walls and may have had palisades too.
[5] On 17 June 1817 Schäffer proclaimed himself a chief of Hanalei at Fort Alexander, after ordering a Russian flag to be raised and a three cannon salute.
[6][5] He also proclaimed a formal Russian claim for island of Kauai on the same occasion.
[5] Forts Alexander and Barclay were destroyed when the Hawaiians revolted in Hanalei.