**EXHIBIT 12.1**

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**CERTIFICATIONS**

I, Gilles Schnepp, Director of Legrand Holding and Vice Chairman and Chief Executive Officer of Legrand SA, certify that: 

| 1.     | I have reviewed this annual report on Form    20-F of Legrand Holding SA;                                                                                                                                                                                                                                  |
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|   |                                                                                                                                                                                                                                                                                                       |
| 2.     | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report; |
|   |                                                                                                                                                                                                                                                                                                       |

| 3.     | Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the company as of, and for, the periods presented in this report; |
|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                 |

| 4.     | The company's other certifying officer(s) and I are responsiblefor establishing and maintaining disclosure controls and procedures (as definedin Exchange Act Rules 13a-15(e)) and internal control over financial reporting(as defined in Exchange Act Rules 13a-15(f) and 15(d)-15(f)) for the companyand have: |
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|   |                                                                                                                                                                                                                                                                                                              |

|   | (a)    | Designed such disclosure          controls and procedures, or caused such disclosure controls and procedures          to be designed under our supervision, to ensure that material information          relating to the company, including its consolidated subsidiaries, is          made known to us by others within those entities, particularly during          the period in which this report is being prepared: |
|--------|--------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                                                                     |

|   | (b)    | Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; |
|--------|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                                                                                    |

|   | (c)    | Evaluated the effectiveness of the company's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and |
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|   |   |                                                                                                                                                                                                                                                                             |

|   | (d)    | Disclosed in this report any change in the company's internal control over financial reporting that occurred during the period covered by the annual report that has materially affected, or is reasonably likely to materially affect, the company's internal control over financial reporting; and |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                                                 |

| 5.     | The company's other          certifying officer(s) and I have disclosed, based on our most recent          evaluation of internal control over financial reporting, to the company's          auditors and the audit committee of the company's board of directors          (or persons performing the equivalent functions); |
|--------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |                                                                                                                                                                                                                                                                                                                          |

|   | (a)    | All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the company's ability to record, process, summarize and report financial information; and |
|--------|--------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|   |   |                                                                                                                                                                                                                                                                   |

|   | (b) | Any fraud, whether or not material, that involves management or other employees who have a significant role in the company's internal control over financial reporting. |
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|                                                                                                       |
|------------------------------------------------------------------------------------------------------------|
| Date: April 29, 2005                                                                                       |
| [Signature]                                                                                                |  |
| Director of Legrand Holding SA and Vice          Chairman and Chief Executive Officer of Legrand SA[Title] |

 

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