What symbolism do art historians assign to the three (rather than four) pendentives used by Guarini to support the dome of the chapel of the Santissima Sindone?

Question

Quizplus · Accepted Answer

The three pendentives used by Guarini in the chapel of the Santissima Sindone symbolize the Holy Trinity, reflecting a common theme in Christian art and architecture to represent the Father, the Son, and the Holy Spirit.

What Symbolism Do Art Historians Assign to the Three (Rather