Arrived at that fine embattled castle of the Killigrews which commanded the entrance to the estuary of the Fal, and from whose crenels the country might be surveyed as far as the Lizard, fifteen miles away, he found Peter Godolphin there before him; and because of Peter's presence Sir Oliver was more deliberate and formal in his accusation of Sir John than he had intended.
"The Sea-Hawk"
Raphael Sabatini
The solid old fabric has rows of crenels under the roof, which shows its warlike character.
"Cæsar or Nothing"
PÃÂÂo Baroja Baroja
One September night a cord was let down from the crenels of the tower, and by this the duke was to descend from his window to the castle ditch, where Benavente's men awaited him.
"The Life of Cesare Borgia"
Raphael Sabatini