What is the personality type of Princess Diana of Wales?

Answer:
Princess's personality type is INFP.
INFP meaning
INFPs are dreamers, fiercely loyal to their ideals and to those they care for. They strive for a life in perfect alignment with their core beliefs, their eyes always fixed on the horizon of possibilities. As natural facilitators of change, they are drawn to understanding others, dedicating themselves to nurturing potential wherever they see it. While they adapt and flow with the winds of life, their resolve hardens against any force that threatens their values, standing as guardians of integrity.
Princess's personality type in various human personality frameworks:
Big Five Personality Traits
RLUAIAttitudinal Psyche
ELFVSocionics
IEITemperament
Phlegmatic [Dominant]Which famous person has the same type as Princess Diana of Wales?

What do each of these systems mean to Princess Diana of Wales?
Each of these systems offers a different lens through which to view and understand personality, with their respective strengths and limitations. MBTI and Socionics are more similar to each other due to their shared roots in Jung's theories, whereas the Big Five is rooted in statistical analyses of behavior. Attitudinal Psyche focuses on attitudes towards life's dimensions, and Temperament theory emphasizes innate behavior patterns.