Bermuda-based Aspen Insurance Holdings Ltd. has announced that its board of directors declared a quarterly cash dividend of 15 cents per share.The dividend is payable on March 4, 2011 to the holders of record as of the close of trading on February 18, 2011.The board also declared a cash dividend on its Perpetual Preferred Income Equity Replacement Securities (Perpetual PIERS) of $0.703125 per Perpetual PIERS. The dividend is payable on April 1, 2011 to the holders of record as of the close of business on March 15, 2011.The board declared a dividend on the 7.401 percent Perpetual Non-Cumulative Preference Shares (Perpetual Preference Shares) of $0.462563 per Perpetual Preference Share, payable on April 1, 2011 to the holders of record as of the close of business March 15, 2011.