 | on 6 November 1819, at the age of 60. "Jean-Jacques-Daniël Dony". Periodiek Systeem (in Dutch). Retrieved 9 December 2021. Guy Depas (5 July 1997). "LA... 4 KB (334 words) - 21:31, 9 December 2021 |
| on 6 November 1819, at the age of 60. "Jean-Jacques-Daniël Dony". Periodiek Systeem (in Dutch). Retrieved 9 December 2021. Guy Depas (5 July 1997). "LA... 4 KB (334 words) - 21:31, 9 December 2021 |