While Kubuna is foremost the i-cavuti of Bau, the name is also shared by certain provinces or vanua that were her allies or influenced by her in the past, which are now part of the confederacy.
A position that has been vacant since the death of Ratu Sir George Cakobau, a former Governor General, in 1989.
It is said that the nomination of Ratu George Kadavulevu Naulivou has been disqualified based on the basis that his father was born out of wedlock.
Also listed as a possible candidate is Fiji's former President, Ratu Epeli Nailatikau; however he too is considered by some to be disqualified as he is only connected through maternal links being a descendant of Ratu Edward Tuivanuavou Tugi Cakobau, a product of an extra-marital liaison by Cakobau's granddaughter Adi Litia Cakobau with (the then married) King George Tupou II of Tonga.
Another high chief from Kubuna is the Roko Tui Bau, most recently Ratu Joni Madraiwiwi, the former Vice-President of Fiji who died in 2016.