Legislature may establish court of probate in each county; powers generally of probate courts.

The legislature shall have power to establish in each county a court of probate, with general jurisdiction of orphans' business and with power to grant letters testamentary and of administration; provided, that whenever any court having equity powers has taken jurisdiction of the settlement of any estate, it shall have power to do all things necessary for the settlement of such estate, including the appointment and removal of administrators, executors, guardians, and trustees and including action upon the resignation of either of them.