I burst out laughing right at the beginning of the third chapter;

-Can you imagine the plumage on the casque shaking in concert with the sounding of the brazen trumpet?!! LOL!!
That is not all.
Imagine Manfred 'beholding'this spectacle and his heart missing a beat in fright so that he turns to Father Jerome and says 'Father' to Jerome, whom he now ceased to treat as Count of Falconara (but now he is Father! LOL!!).

- Manfred's incoherency on hearing the second flight of Isabella in the presence of the 3 knights, and his anger with the priest.
He was '..now upbraiding the friar,- now apologizing to the knights,
earnest to know what was become of isabella,- yet equally afraid of their knowing,
impatient to persue her, - yet dreading to have them join in the persuit.

- May be I am running away with my imagination, but I am imagining a real comic scene here, where Manfred in his nervous incoherent state orders 'all' his guards to search for Isabella .. not meaning to extend it to the guard he had set upon Theodore, but forgetting it. The domestics....[ ]..and urged by their own curiosity and love of novelty to join in any precipitate chace, had to a man left the castle.

-Then there is Theodore. Freshly in love with Matilda,and unwilling to go in search of Isabella because;
'..he could not bear to absent himself at much distance from her abode. The tenderness Jerome had expressed for himconcurred to confirm his reluctance; and he even persuaded himself that filial affection was the chief cause of his hovering between the castle and monastry.