Thains of the Shire established by Bucca of the Marish
Event Type: Political
Age: 3rd Age - The Kings
Afterwards in the peace that followed [the end of the North Kingdom] the Shire-folk ruled themselves and prospered. They chose a Thain to take the place of the King, and were content; though for a long time many still looked for the return of the King. But at last that hope was forgotten, and remained only in the saying When the King comes back, used of some good that could not be achieved, or of some evil that could not be amended. The first Shire-thain was one Bucca of the Marish, from whom the Oldbucks1 claimed descent. He became Thain in 379 of our reckoning (1979).
The Return of the King, LoTR Appendix A, Annals of the Kings and Rulers: Eriador, Arnor, and the Heirs of Isildur: The North-kingdom and the Dúnedain
1 Gorhendad Oldbuck of the Marish, c. 740 ... changed the family name to Brandybuck.
The Return of the King, LoTR Appendix C, Family Trees