Такомбау
The Vunivalu of Bau title was considered subordinate to the Roko Tui Bau. Power struggles between the various chiefly households came to a head with the exile of the Vunivalu Tanoa Visawaqa in the early 19th century after a series of murders and reprisals. His son Seru Epenisa Cakobau however was allowed to remain in Bau during his fathers exile. Cakobau gained power by subverting the Lasakau people to plot and execute the overthrow of the ruling group, led by Ratu Ravulo Vakayaliyalo, in 1837; Seru Epenisa Cakobau then reinstated his father as ruler.