Question: Pieter 'Piet' Klijnveld, was a Dutch accountant who started a practice that after several mergers would grow into which professional service company and one of the Big Four auditors, along with Deloitte, Ernst & Young (EY), and PricewaterhouseCoopers (PwC)?
Sentence (from "Piet Klijnveld"): Pieter 'Piet' Klijnveld (16 August 1874 – 9 February 1945) was a Dutch accountant who started a practice that after several mergers would grow into the international accounting firm KPMG.
Relevant evidence: Yes