| Navn | Total | Navn | Total | Navn | Total | Navn | Total | Navn | Total |
|---|
| FitzGeoffrey Ballymadden | 1 | Fitzmaldred of Dunbar | 1 | Fitzrogers Baron Of Clavering | 1 | Flanders I | 1 | Flemming Rosenkranz | 1 |
| FitzGeoffrey Essex | 1 | FitzMaurice | 6 | FitzRoy | 11 | Flanders I, Of | 2 | Flemos | 5 |
| Fitzgeoffrey Knight | 1 | Fitzmaurice Baron Offaly | 1 | Fitzsiward | 1 | Flanders II | 3 | Flensborg | 5 |
| Fitzgeoffrey Lord Kirtling -Justicular | 1 | Fitzmaurice Earl Of Desmond | 1 | Fitzsuein of Essex | 1 | Flanders II, Of | 3 | Flesland | 1 |
| FitzGeorge | 1 | FitzMaurice Offaly | 1 | FitzUchtred | 2 | Flanders III | 1 | Fletcher | 3 |
| Fitzgerald | 17 | FitzNichol | 1 | FitzWalter | 4 | Flanders III, Of | 2 | Fleur | 1 |
| Fitzgerold | 1 | Fitznigell | 2 | Fitzwalter High Steward | 2 | Flanders IV | 1 | Flickenger | 1 |
| Fitzgilbert | 24 | Fitznigell de Halton | 1 | FitzWalter Lady of Blaen and Bwlchy | 1 | Flanders IV, Of | 2 | Flida | 3 |
| FitzGilbert Clare | 1 | Fitzosbern | 5 | FitzWarin | 4 | Flanders Northumbria | 1 | Flint | 1 |
| Fitzgilbert Countess of Pembroke | 1 | FitzOsbern Exeter | 1 | FitzWarine | 2 | Flanders V | 1 | Flo | 2 |
| FitzGilbert Devon | 1 | FitzOsbern Hereford | 1 | Fitzwilliam | 5 | Flanders V, Of | 2 | Floberg | 1 |
| Fitzgilbert Earl | 4 | FitzOsborne | 1 | Fitzwilliam Countess Of Cornwall | 1 | Flanders VI | 1 | Floer | 3 |
| Fitzgilbert Earl of | 1 | Fitzpatrick | 2 | Fitzwilliam Ctss Of Glouchester | 1 | Flandes, de | 3 | Florange, de | 2 |
| Fitzgilbert Earl of Gloucester | 1 | Fitzpayn | 1 | Fjeldberg | 1 | Flandes Count of Flanders II, de | 1 | Florent Count of Holland Earl of Ross | 1 |
| Fitzgilbert Earl of Hereford | 1 | Fitzpen | 1 | Fjeldstad | 1 | Flandre, De | 13 | Florentin | 1 |
| Fitzgilbert Earl of Hertford | 2 | FitzpenPhippen | 1 | Fjelldal | 1 | Flandre Count of Flanders I, de | 1 | Florentina de Navarra | 1 |
| FitzGilbert Hertford | 1 | FitzPeter | 2 | Fjellheim | 26 | Flandre Et Hainaut | 1 | Flores | 6 |
| Fitzgilbert Lady Of Tunbridge | 1 | FitzPiers | 16 | Fjellheim Sidetun | 2 | Flandres Count Of Flanders | 1 | Flores García | 1 |
| Fitzgilbert Lord | 1 | FitzPiers Essex | 1 | Fjelnset | 4 | Flannery | 1 | Flores y Cabrera, de | 1 |
| Fitzgilbert Lord Of Workworth | 1 | Fitzponce | 1 | Fjelstad | 3 | Flaten | 6 | Floresinda | 1 |
| Fitzgilbert Lord Tunbridge | 1 | Fitzpons | 1 | Fjermestad | 1 | Flatland | 1 | Flórez Frolez | 1 |
| FitzGulbert Auflay | 1 | Fitzranulf | 6 | Fjerritslev | 1 | Flatlandsmo | 1 | Flower | 1 |
| Fitzhammon Countess Of | 1 | FitzReginald | 1 | Fjolnesson | 1 | Flatnev | 1 | Fluga | 6 |
| Fitzhamon | 2 | Fitzrichard | 3 | Fjordå | 1 | Flatvoll | 3 | Fly | 1 |
| Fitzharding | 11 | Fitzrichard Earl of Hertfordshire | 1 | Flaccilla | 1 | Flavia | 2 | Flægstad | 1 |
| Fitzharding Baron | 6 | FitzRichard Netherwent | 1 | Flach | 2 | Flavia Augusta | 1 | Flægstadval | 2 |
| FitzHenry | 3 | FitzRobert | 16 | Flack | 4 | Flavia Flaccilla | 1 | Flødhamar | 1 |
| FitzHerbert | 16 | Fitzrobert Bishop Of Worcester | 1 | Flage | 3 | Flavia Placidia | 1 | Fløtten | 1 |
| Fitzherbert II | 1 | FitzRobert Chester | 1 | Flainez | 2 | Flavia Placidius | 1 | Foat | 5 |
| FitzHerbert of Winchester | 1 | Fitzrobert Countess of Gloucester | 1 | Flaitel | 7 | Flavigny, de | 1 | Fogaça | 1 |
| FitzHerfast Normandy | 1 | Fitzrobert de Warkworth | 1 | Flakstad | 5 | Flavius | 8 | Fogaça * | 1 |
| Fitzhugh | 21 | FitzRobert Gloucester | 1 | Fland | 1 | Flavius Placidius III | 1 | Foged | 1 |
| Fitzhugh Baroness Dacre Of Gilsland | 1 | Fitzrobert Lord Of Cruelly | 1 | Flandbert | 1 | Fleche, de la | 1 | Fogh | 1 |
| Fitzjohn | 24 | Fitzrobert Lord Warkworth | 2 | Flandern | 3 | Fleck | 47 | Fogsen | 2 |
| Fitzjohn Knight | 1 | Fitzrobert of Gloucester | 1 | Flanders | 50 | Fleck Jr. | 1 | Foi | 1 |
| Fitzjohn Lord Of Warkworth | 2 | FitzRoger | 2 | Flanders, de | 37 | Fleet | 3 | Foilaz | 2 |
| Fitzjohn of Ewyas | 1 | FitzRoger Baron of Clavering | 1 | Flanders, of | 8 | Fleetwood | 1 | Foix | 3 |
| Fitzlewis | 4 | Fitzroger Lord Of Clavering | 1 | Flanders & Hainault | 2 | Fleischer | 7 | - | - |
| Fitzlewis Countess Of Rivers | 1 | Fitzroger Lord Of Workworth | 1 | Flanders & Hainault VI, Of | 1 | Fleissner | 5 | - | - |
| Fitzmaldred | 2 | FitzRoger Warkworth | 1 | Flanders Countess Of Dammartin | 1 | Fleming | 5 | - | - |
| Fitzmaldred Lord of Raby | 1 | FitzRogers | 1 | Flanders Forester of Flanders, de | 1 | Flemming | 7 | - | - |
