This is a list of those who bore the title Count of Soissons (French: Comte de Soissons) and ruled Soissons and its civitas or diocese as a county in the Middle Ages. The title continued in use into modern times, but without ties to the actual Soissonnais.
- 896–c. 907 Herbert I, Count of Vermandois
- c. 907–930 Herbert II, Count of Vermandois, son of the previous
- 969–988 Guy I, son of the previous.
- 988–1047 Adelise, daughter of the previous.
- until 1019 Nocher I, jure uxoris, husband of the previous
- 1019-1042 Renaud I, son of the previous
- 1042–1057 Guy II, son of the previous
- 1057–1079 Adelaide, sister of the previous.
- 1076 William Busac, also Count of Eu, jure uxoris, husband of the previous
- 1076–1099 Renaud II, son of the previous
- 1099–1115 John I, brother of the previous
- 1115–1141 Renaud III, son of the previous.
- 1141–1178 Yves II le Vieux (the Old), great-grandson of William Busac
- 1178–1180 Conon, nephew of the previous
- 1180–1235 Raoul le Bon, brother of the previous
- 1235–1270 John II le Bègue (the Stammerer), son of the previous
- 1270–1284 John III, son of the previous
- 1284–1289 John IV, son of the previous
- 1289–1298 John V, son of the previous
- 1298–1306 Hugh, brother of the previous
- 1306–1344 Margaret, daughter of the previous.
- 1317–1344 John of Beaumont, jure uxoris, husband of the previous
- 1344–1350 Jeanne de Hainaut, daughter of the previous
- 1344–1346 Louis II, also Count of Blois, jure uxoris, husband of the previous.
- 1346–1350 Louis III, also Count of Blois, son of the previous
- 1350–1367 Guy II, also Count of Blois, brother of the previous.
After the Battle of Poitiers, Louis III sold the County of Soissons to Engeurrand VII in order to ransom his brother Guy.
- 1367–1397 Enguerrand VII, Lord of Coucy
- 1397–1405 Marie de Coucy
- 1412–1415 Robert de Marle, son of Henry of Bar and Marie de Coucy
- 1415–1462 Jeanne de Marle
- 1462–1476 John VI
- 1476–1482 Peter II of Saint-Pol
- 1482–1547 Mary II (died 1547)
- 1487–1495 François, jure uxoris
- 1495–1537 Charles, Duke of Vendôme, jure matris
- 1547–1557 Jean VII
- 1557–1569 Louis de Bourbon, Prince of Condé, brother of prec.
- 1569–1612 Charles de Bourbon
- 1612–1641 Louis de Bourbon
- 1641–1656 Marie de Bourbon, Princess of Carignano (died 1692), sister of prec.
- 1641–1656 Thomas Francis (1596-1656), jure uxoris
- 1646/50–1656 Joseph Emmanuel, titular count, son of prec.
- 1656–1673 Eugène Maurice, brother of prec.
- 1673–1702 Louis Thomas, son of prec.
- 1702–1729 Emmanuel Thomas
- 1729–1734 Eugène Jean François
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction