Pieter Hermanus Cruijff was born 19 June 1911 in Amsterdam, North Holland, Netherlands to Herman Cornelius Cruijff (1886-1957) and Dorothea Catharina Elisabeth Daansen (1888-1954) and died 22 May 1913 Amsterdam, North Holland, Netherlands of unspecified causes.
Siblings
| Name | Birth | Death | Joined with |
| Dirk Cruijff (1910-1981) | 28 April 1910 Amsterdam, North Holland, Netherlands | 1981 | Margaretha Maria Elisabeth Pols (1914-1991) |
| Pieter Hermanus Cruijff (1911-1913) | 19 June 1911 Amsterdam, North Holland, Netherlands | 22 May 1913 Amsterdam, North Holland, Netherlands | |
| Hermanus Cornelis Cruijff (1913-1959) | 30 October 1913 Amsterdam, North Holland, Netherlands | 8 July 1959 Amsterdam, North Holland, Netherlands | Petronella Bernarda Draaijer (1917-2007) |