Aspen Declares Dividends on Ordinary Shares, Perpetual PIERS and Perpetual Preference Shares

  
    
  
  
    
      Aspen Insurance Holdings Limited (the “Company”) 
      (NYSE:AHL) today announced that its Board of Directors on May 2, 2007 
      declared a quarterly cash dividend on its ordinary shares of US$0.15 per 
      ordinary share. The dividend is payable on May 25, 2007 to the holders 
      of record as of the close of trading on May 15, 2007.
    
    
      The Company’s Board of Directors also declared 
      a cash dividend on its Perpetual Preferred Income Equity Replacement 
      Securities (“Perpetual PIERS”) 
      of US$0.703125 per Perpetual PIER. The dividend is payable on July 1, 
      2007 to the holders of record as of the close of business on June 15, 
      2007.
    
    
      The Company’s Board of Directors declared a 
      dividend on the 7.401% Perpetual Non-Cumulative Preference Shares (“Perpetual 
      Preference Shares”) of US$0.462563 per 
      Perpetual Preference Share, payable on July 1, 2007 to the holders of 
      record as of the close of business on June 15, 2007.
    
    
      About Aspen Insurance Holdings Limited
    
    
      Aspen Insurance Holdings Limited was established in June 2002. Aspen is 
      a Bermudian holding company that provides property and casualty 
      reinsurance in the global market, property and liability insurance 
      principally in the United Kingdom and the United States and specialty 
      insurance and reinsurance consisting mainly of marine and energy and 
      aviation worldwide. Aspen’s operations are 
      conducted through its wholly-owned subsidiaries located in London, 
      Bermuda and the United States: Aspen Insurance UK Limited, Aspen 
      Insurance Limited and Aspen Specialty Insurance Company. Aspen has four 
      operating segments: property reinsurance, casualty reinsurance, 
      specialty insurance and reinsurance and property and casualty insurance. 
      For more information about Aspen, please visit the Company’s 
      website at www.aspen.bm.