It can also refer to Jan Ocko of Vlašim.John VIII, Count of Nassau-Siegen (Jan or Johan; Dillenburg, 29 September 1583 – Ronse, 27 July 1638) was a German nobleman and militarist of the 17th century.
Jan Antonisz. van Ravesteyn, Jan Antonisz. van Ravesteijn, Jan van Ravesteijn, Joan van Ravestein, Johan van Ravestein, Johannes Ravestein, Jan Anthonie van Ravesteyn, Jan Anthonisz. van Ravesteyn