Question: What is the date of birth of Geertruida De Haas-Lorentz's father?
Sentence (from "Hendrik Lorentz"): According to the biography published by the Nobel Foundation, "It may well be said that Lorentz was regarded by all theoretical physicists as the world's leading spirit, who completed what was left unfinished by his predecessors and prepared the ground for the fruitful reception of the new ideas based on the quantum theory."
Relevant evidence: No