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| Marquisate | Province | Department | Time of Creation | Type | Receiving family | Current status | Comments |
|---|---|---|---|---|---|---|---|
| les ÎLES-d'OR | Provence | 83 | 1531 | LP | d'Ornessan | Extinct 1783 | Reverted to seigneurie when sold |
| les ÎLES-d'OR | Provence | 83 | 1552 | C LP | de Luetz d'Aramon | Extinct 1783 | |
| les ÎLES-d'OR | Provence | 83 | 1624 | C LP | de Gondi-Retz | Extinct 1783 | |
| ILLIERS | Chartrain | 28 | Henri IV | LP | de Daillon du Lude | Extant | belongs to Patas de Mesliers since 1781 (acquisition) |
| ILLIERS | Chartrain | 28 | 1714 | C LP | Phélypeaux | Extant | |
| IMÉCOURT | Champagne | 08 | c1700 | LP | de Vassinhac d'Imécourt | Extant | |
| IRANDA | Navarre | 64 | 1769 | LP | d'Aragorry | Extant | Spanish title; inherited by d'Arcangues 1818 |
| IRANDA | Navarre | 64 | 1783 | C LP | d'Aragorry | Extant | French confirmation |
| l'ISLE-BOUZON | Armagnac | 32 | late 16__ | * | de Galard de l'Isle | Extinct 1928 | |
| l'ISLE-JOURDAIN | Poitou | 86 | Louis XIII | LP | de la Béraudière | Extinct | Some sources state raised in the 1500- |
| l'ISLE-sous-MONTRÉAL | Champagne | 89 | 17__ | LP | de Mailly-Nesle | Extant | sold to de Bertier de Sauvigny but title not used |
| ISLES | Champagne | 10 | 1547 | LP | de (la Marck-)Clèves | Duchy 1665 | also called marquisate d'ISLE-AUMONT before being raised to duchy d'AUMONT |
| IVRY | Bourgogne | 21 | 1776 | LP | Richard de Curtil | Extant |
Read more about this topic: List Of French Marquisates