The well known mons may be a Tarpeian rock.

A most felicitous reference, wwh, as it hoists us back on course.

It seems the Vestal Virgin Tarpeia, who was duplicitous without being proceptive, and from whom the infamous Tarpaeian rock takes its name, was hoisted with her own petard, as the tale below relates:

... the Vestal Virgin Tarpeia, who betrayed the Romans by letting the Sabines in through the gates after being promised to receive what they 'bore on their arms'. Naturally she hoped for their golden bracelets, instead she was crushed to death between their shields. Her body was buried atop the cliff, giving it its name.