His adoptive father, King Muagututi'a, was a direct descendant of Fofoaivaoese. Tupua Fuiavailili was thus the first King to be descended from Queen Salamasina through both her children, Fofoaivaoese and Tapusatele.
Tupua Fuiavailili's adoptive father, King Muagututi'a, was a direct descendant of Fofoaivaoese. Therefore, Tupua Fuiavailili became the first ruler to have a lineage from Queen Salamasina through both her children, Fofoaivaoese and Tapusatele.