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| Name | Total | Name | Total | Name | Total | Name | Total | Name | Total |
|---|---|---|---|---|---|---|---|---|---|
| Legh | 4 | Llewellen "Eynion" | 1 | Legh, De | 2 | Lytton | 3 | Livingston of Linlithgow | 1 |
| Lovestick | 4 | LeBon | 6 | Lyster | 3 | Luxembourg, de | 1 | Livingston 2nd Earl of Linlithgow | 1 |
| Leete | 1 | LeBon DeBohun | 2 | Lister | 1 | Luxemborg, de | 1 | Lindsay, de | 1 |
| Lewis | 2 | LeBon DeBohon | 1 | Lander | 1 | Lincoln, de | 2 | Lovingcott | 1 |
| Long 1919 | 1 | Lyttleton | 2 | Lecky | 2 | Lacy, de | 1 | Lovingscott | 1 |
| Lumpkin | 5 | LaZouche | 1 | Laugharne | 1 | Leveland | 1 | Lydiard | 2 |
| Lumley | 1 | LaStrange | 5 | Lancaster | 1 | Lusignan | 2 | - | - |
| Littlebury | 1 | Langton | 1 | Leigh | 1 | Llewelyn | 1 | - | - |
| Laycocke | 2 | Lord Penllyn | 1 | Lauder | 1 | Leydon | 1 | - | - |
| Lockwood | 2 | Ludlowe | 3 | Lane | 3 | Lisours, De | 1 | - | - |