Would taking Constantinople require a bombardment that endangered Hagia Sophia?
Short answerProbably not. The threat from Queen Elizabeth's 15-inch guns could make the Ottoman government flee before a bombardment was necessary.
NotesA bombardment of Constantinople could endanger Hagia Sophia, but the naval threat might make firing unnecessary. Queen Elizabeth's 15-inch guns trained on the capital could drive the Ottoman government to flee. Its authority might then collapse as Constantinople fell. This counterfactual depends on the government's vulnerability to coercion and leaves open the risk of violence.