64-13: de lo más singular: an idiomatic substitution of the singular for the plural.
65-1: aquí: after de aquí (hence) supply some verb like resultó.
65-2: el que ... ella se brindara: que ella se brindara is treated as a substantive clause, which el precedes as it would a mere noun.
65-3: por creer: because he believed.
65-4: la tal efigie: (familiar style) this (same) portrait.