Mei he Wikipedia

This was the first time that a daughter of the Tuʻi Haʻatakalaua married with a Tuʻi Tonga. This would from now on strengthen the links between the two families. Kalo-afu-tonga was the first māʻitaki. The word is clearly related to the Sāmoan tama'itaʻi (lady).

Campbell's spelling her name as Kaluafotonga must be a mistake. FOKI