Valentina comes from the Latin valens, meaning strong or healthy, and the name is traditionally associated with vigor and robust vitality rather than delicacy. It's often read as suggesting resilience of body and spirit together -- strength understood as a kind of wellbeing, not merely physical force applied outward.
When the three superiour planets shall be conjoined in regal signs, it is termed a great conjunction; and when the Sun beholds them, they make most potent and flourishing kingdoms. - William Lilly (1602.-1681.)