Three hundred will be of one will & accord,

That to come to the end of their attack:

Twenty months after all & records,

Their king betray simulating feigned hatred.

1-2 lines. In the final vote over King Louis XVI of France, which ended at 2 a.m., 310 people voted for the immediate death penalty. He was beheaded on January 21, 1793.

Twenty months (after the escape) – this is June 1791, when the royal family tried to flee from the revolutionary France, but was arrested on the way. This undermined the authority of the king among the people and, in the future, led to his execution.

Linkage with other quatrains: 6.23, 9.20.

Decoding of number 5.37. If 5 to flip in 2, 1 to put in front and to consider as 1000, then 1000-237=763, turning 6 we get 793 – the year of the king's execution.

Quatrain 10.43 Royal goodness

Le trop bon temps, trop de bonte royale,

Faicts & deffaicts prompt, subit, negligence.

Leger croira faux d'espouse loyale.

Luy mis a mort par sa beneuolence.