Sjaak de Koning
| full name | Jacques de Koning | |
| nationality | the Netherlands (NED) | |
| born | April 1950 | in Purmerend (the Netherlands) |
| family | husband of Truus de Koning-Dijkstra father of Jacques de Koning grandson of Jacques P. de Koning nephew of Aad de Koning grand nephew of Coen de Koning | |
