##### 



Exhibit 4.36

PURCHASE AGREEMENT

This agreement is made by and between:

Converium AG, General Guisan-Quai 26, 8022 Zurich, Switzerland,a company
established under the laws of Switzerland (the Seller)

and

Converium Finance S.A., 54 boulevard Napoléon Ier, 2210 Luxembourg, Luxembourg,
a company established under the laws of Luxembourg (the Buyer)

WHEREAS



|a. |  | The Seller entered into a loan agreement (the Loan) with Converium
Holding AG (the Borrower) dated December 19, 2001 and granting Borrower
a loan in the total aggregate amount of USD 150,000,000. An interest rate
of 7.0 per cent per annum was agreed.
|-- |  | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|  
|b. |  | The Seller is willing to sell and assign and the Buyer is intending to
buy all interest, claims and rights (the Rights) of the Seller under the
Loan.                                                                                                       

NOW THEREFORE IT IS AGREED AS FOLLOWS:

Article 1  Sale of the Shares; Purchase Price

1.1. The Seller agrees to sell and the Buyer undertakes to buy all Rights of
the Seller towards the Borrower under the Loan, including all interests and
capital payments that are due or may at any time become due on or after the
Effective Date (as defined hereafter).

The purchase and assignment of the Rights shall be effective as of December
27, 2002 (the Effective Date).

1.2The total price to be paid by the Buyer to the Seller (the Purchase
Price) shall be USD 150758333.33and be payable at the Effective Day.

The transfer of the Rights shall be completed by a formal assignment on the
Effective Day.

1.3.Upon and after the Effective Date, the Seller shall, at the request of the
Buyer, do and execute or procure to be done and executed all such acts, deeds,
documents and things as may be reasonably necessary to give effect to this
agreement.





---



##### 



Article 2  Representations and Warranties

2.1.The Seller hereby represents and warrants that



|a) |  | it legally owns the Rights and has taken all necessary corporate action
to sell the Rights to the Buyer according to the present agreement; and                                                                                                                                                                                                                                                                                                                                                                            
|-- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|  
|b) |  | the Rights are free of any liens or encumbrances of whatever nature and
there is no legal, regulatory or contractual impediment to transfer the
Rights to the Buyer; and the                                                                                                                                                                                                                                                                                                                                               
|  
|c) |  | the Borrower is in good standing and the Seller has not received any
notice of, and has no reason to believe that exist, any judgments, legal
actions, administrative proceedings, investigations, agreements,
commitments, controversies of any nature pending or threatened that may
adversely affect the ability to consummate the transaction contemplated by
this agreement or that might have, or have had, a material adverse effect
on the value of the Rights and, therefore, on the fixing of the Purchase
Price.

2.2.The Buyer hereby assures that it has taken all necessary corporate action
to enter into this agreement, that this agreement does not violate any legal or
contractual obligation binding upon it, and that upon signature of the present
agreement the obligations of the Buyer contained herein shall be its legal and
enforceable obligations.

Article 3  Taxes and Levies

3.1.Any payment hereunder shall be received by the Seller in full, net of any
tax, levy and any other retention or withholding. If at any time the Buyer is
required to make any deduction or withholding in respect of taxes from any
payment due under this agreement for the account of the Seller, the sum due
from the Buyer in respect of such payment shall be increased to the extent
necessary to ensure that, after the making of such deduction or withholding,
the Seller receives a net sum equal to the sum it would have received had no
such deduction or withholding been required to be made.

Article 4  Law and Jurisdiction

4.1.The present agreement shall be and the relationship between the parties
hereto shall be governed by, and interpreted in accordance with, the laws of
Switzerland, excluding the principles of conflict of laws.

4.2.Any dispute arising from the present agreement shall be submitted
exclusively to the Commercial Court of the Canton of Zurich (Handelsgericht
des Kantons Zürich) in Zurich (Switzerland), or any other court of competent
jurisdiction that the parties mutually agree to elect.

Article 5  Notices

All written notices and other communications under or with regard to this
agreement shall be addressed to the following addresses (or to such other
address for a party as shall be specified by like notice):



|a) |  | if to the Seller, to:
|-- |  | ---------------------





---



##### 





|   |  | Converium AG
General Guisan-Quai 26
8022 Zürich                                      
|-- |  | -------------------------------------------------------------------------------------
|  
|b) |  | if to the Buyer, to:
Converium Finance S.A.
54 boulevard Napoléon Ier
2210 Luxembourg

In witness whereof, the parties have signed this agreement in [2] counterparts
of identical form.

|            |  |                        
|----------- |  | -----------------------
|           
|           
|Place, Date |  | Converium AG           
|           
|           
|           
|            |  | (authorized signatures)
|           
|           
|           
|           
|Place, Date |  | Converium Finance S.A. 
|           
|           
|           
|            |  | (authorized signatures)





---



##### 



ASSIGNMENT

THIS ASSIGNMENT, made this December 27, 2002 by and between Converium AG,
General Guisan-Quai 26, 8022 Zürich (the Assignor) and Converium Finance
S.A., 54 boulevard Napoléon Ier, 2210 Luxembourg (the Assignee)

WHEREAS, Assignor and Assignee have entered into a purchase agreement pursuant
to which Assignor agreed to assign to Assignee all its interest, rights and
claims (the Rights) under the loan agreement (the Loan) with Converium
Holding AG dated December 19, 2001.

WHEREAS, Assignor desires to assign to Assignee as of the date hereof
Assignors Rights under the Loan.

NOW THEREFORE, in consideration of the premises and the mutual covenants herein
contained, the parties hereby agree as follows:



| | 1. |  | Terms used herein but not defined shall have the meaning ascribed
to them in the Loan.                                                                                                                                                                                                                                                                   
| | -- |  | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|
| | 2. |  | Assignor hereby assigns, sets over and transfers unto Assignee to
have and to hold from and after the date hereof, but effective as of
December 27, 2002 the Rights of Assignor in, to and under the Loan and
Assignee hereby accepts this assignment. The foregoing assignment is
made without recourse, representation or warranty, express or implied.
|
| | 3. |  | This Assignment shall be governed by and construed in accordance
with the laws of Switzerland.                                                                                                                                                                                                                                                           
|
| | 4. |  | All disputes arising out of or relating to this Assignment shall be
subject to the exclusive jurisdiction of the Commercial Court
(Handelsgericht) of the Canton of Zurich, with the right to appeal to
the Federal Tribunal.                                                                                                                            





---



##### 



IN WITNESS WHEREOF, the parties hereto have duly executed this Assignment as of
the day and year first above written.

ASSIGNOR:

Converium AG

|    |  |              
|--- |  | -------------
|By  |  |              
|    |  |              
|    |  | Name :
Title:
|    |  |              
|    |  |              
|By: |  |              
|    |  |              
|    |  | Name:
Title: 
|    |  |              
|    |  |              

ASSIGNEE:

Converium Finance S.A.

|    |  |             
|--- |  | ------------
|By: |  |             
|    |  |             
|    |  | Name:
Title:
|    |  |             
|    |  |             
|By: |  |             
|    |  |             
|    |  | Name:
Title:

Acknowleged by Comverium Holding AG

|    |  |  |     |  | 
|--- |  |  | --- |  | 
|By: |  |  | By: |  | 
|    |  |  |     |  |