This term refers to the document authorising and proving the ability of a person to deal with an estate.  Where one or more executor is named in the will then it means the grant of probate applied for by one or up to four executors. Where there is no will an application can be made for a Grant of Letters of Administration. This process gives the executor or administrator the authority to carry out their role and discharge their responsibilities to gather in assets, settle debts and deal generally with the estate and the will.