216. Administration during minority. When there are two or more minor executors, and no executor who has attained majority, or two or more residuary legatees, and no residuary legatee who has attained majority, the grant shall be limited until one of them shall have completed the age of twenty-one years. 217. Administration for use and benefit of lunatic jus habens. If a sole executor or a sole universal or residuary legatee, or a person who would be solely entitled to the estate of the intestate according to the rules for the distribution of intestates’ estates, is a lunatic, letters of administration with or without the will annexed, as the case may be, shall be granted to the person to whom the care of his or her estate has been committed by competent authority, or, if there is no such person, to such other person as the court may think fit to appoint, for the use and benefit of the lunatic until he or she shall have become of sound mind. 218. Administration pendente lite. The court may, pending any suit touching the validity of the will of a deceased person, or for obtaining or revoking any probate or any grant of letters of administration, appoint an administrator of the estate of the deceased person, who shall have all the rights and powers of a general administrator, other than the right of distributing the estate, and every such administrator shall be subject to the immediate control of the court, and shall act under its direction. Grants for special purposes. 219. Probate limited to purpose specified in will. If an executor is appointed for any limited purpose specified in the will, the probate shall be limited to that purpose, and, if he or she should appoint an attorney to take administration on his or her behalf, the letters of administration with the will annexed shall accordingly be limited. 220. Administration with will annexed limited to particular purpose. If an executor appointed generally gives an authority to an attorney to prove a will on his or her behalf, and the authority is limited to a particular purpose,