Where provisions to husbands, wives, and children, annuities or terminable charges, are secured upon the estate, or where courtesy or terce are not excluded, due provision shall be made under the authority of the Court for their payment out of the capital or income, as the case may be, of the estate or fund into which the entailed estate is converted, or otherwise to the satisfaction of the Court, and the entailed estate shall thereafter be effectually freed and disencumbered of such provisions, annuities, charges, courtesy, or terce, by discharges to be granted by the persons in right thereof or by a decree of the Court declaring the entailed estate to be so freed and disencumbered, which discharges or decree shall be recorded in the appropriate register of sasines.