Synthesized answer
Sovereign assemblies need protectors in all great dangers and troubles [3]. In such circumstances, they require Custodes Libertatis, or protectors of their authority, who are like temporary monarchs [3]. These protectors are entrusted with the entire exercise of the assembly's power for a limited time [3].
The passages also mention that a protector or regent may be appointed by the predecessor of an infant king during his minority to administer the entire kingdom [2]. However, the passages do not explicitly state when sovereign assemblies *specifically* need protectors beyond the general condition of "great dangers and troubles."
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
without fraudulent pretence of having submitted himselfe out of fear,) to protect his Protection as long as he is able. But when the Power of an Assembly is once suppressed, the Right of the same perisheth utterly; because the Assembly it selfe is extinct; and consequently, there is no possibility for the Soveraignty to re-enter. CHAPTER XXX. OF THE OFFICE OF THE SOVERAIGN REPRESENTATIVE The Procuration Of The Good Of The People The OFFICE of the Soveraign, (be it a Monarch, or an Assembly,) consisteth in the end, for which he was trusted with the Soveraign Power, namely the…
rs, some have charge committed to them of a general Administration, either of the whole Dominion, or of a part thereof. Of the whole, as to a Protector, or Regent, may bee committed by the Predecessor of an Infant King, during his minority, the whole Administration of his Kingdome. In which case, every Subject is so far obliged to obedience, as the Ordinances he shall make, and the commands he shall give be in the Kings name, and not inconsistent with his Soveraigne Power. Of a Part, or Province; as when either a Monarch, or a Soveraign Assembly, shall give the generall charge thereof…
is committed: So an Assembly wanteth the liberty, to dissent from the counsell of the major part, be it good, or bad. And as a Child has need of a Tutor, or Protector, to preserve his Person, and Authority: So also (in great Common-wealths,) the Soveraign Assembly, in all great dangers and troubles, have need of Custodes Libertatis; that is of Dictators, or Protectors of their Authoritie; which are as much as Temporary Monarchs; to whom for a time, they may commit the entire exercise of their Power; and have (at the end of that time) been oftner deprived thereof, than Infant Kings, by…
escribed by writing. But there be Bodies also whose times are limited, and that only by the nature of their businesse. For example, if a Soveraign Monarch, or a Soveraign Assembly, shall think fit to give command to the towns, and other severall parts of their territory, to send to him their Deputies, to enforme him of the condition, and necessities of the Subjects, or to advise with him for the making of good Lawes, or for any other cause, as with one Person representing the whole Country, such Deputies, having a place and time of meeting assigned them, are there, and at that time, a…
pend on the Votes of the major part; and then this Assembly is a Body Politique, and their power limited by Commission. This word Province signifies a charge, or care of businesse, which he whose businesse it is, committeth to another man, to be administred for, and under him; and therefore when in one Common-wealth there be divers Countries, that have their Lawes distinct one from another, or are farre distant in place, the Administration of the Government being committed to divers persons, those Countries where the Soveraign is not resident, but governs by Commission, are called…