**Core Concept**
Gradenigo's triad is a collection of symptoms associated with petrous apex syndrome, which occurs due to inflammation or infection of the petrous apex of the temporal bone. This rare condition is characterized by a specific combination of cranial nerve palsies and other symptoms.

**Why the Correct Answer is Right**
Gradenigo's triad typically consists of three main symptoms: severe facial pain, otitis media, and abducens nerve palsy (sixth cranial nerve palsy). The abducens nerve controls the lateral rectus muscle, which is responsible for eye abduction. The combination of facial pain and abducens nerve palsy is characteristic of Gradenigo's triad, suggesting involvement of the petrous apex.

**Why Each Wrong Option is Incorrect**
**Option A:** While otitis media is a common condition, it is not exclusive to Gradenigo's triad and can be caused by various factors. Otitis media may be present in Gradenigo's triad, but it is not a defining characteristic.
**Option B:** Severe facial pain is a hallmark symptom of Gradenigo's triad, often described as a deep, aching pain in the temporal region. This symptom is directly related to the inflammation or infection of the petrous apex.
**Option C:** The trigeminal nerve (fifth cranial nerve) is responsible for facial sensation and motor function. However, Gradenigo's triad is specifically associated with abducens nerve palsy, not trigeminal nerve dysfunction.
**Option D:** Gradenigo's triad is not associated with a specific type of meningitis. While meningitis can cause various symptoms, Gradenigo's triad is a distinct clinical entity characterized by specific symptoms related to the petrous apex.

**Clinical Pearl / High-Yield Fact**
When encountering a patient with severe facial pain and abducens nerve palsy, Gradenigo's triad should be considered in the differential diagnosis. This condition requires prompt recognition and treatment to prevent complications.

**Correct Answer:** D.