Exhibit 99.3

SCHEDULE 10

NOTIFICATION OF MAJOR INTERESTS IN SHARES

All relevant boxes should be completed in block capital letters.

1. Name of company
ROYAL & SUN ALLIANCE INSURANCE GROUP PLC 2. Name of shareholder having a major interest
LEHMAN BROTHERS INTERNATIONAL (EUROPE)

3. Please state whether notification indicates that it is in respect of holding of the shareholder named in 2 above or in respect of a non-beneficial interest or in the case of an individual holder if it is a holding of that person’s spouse or children under the age of 18
SHAREHOLDER NAMED IN 2 ABOVE 4. Name of the registered holder(s) and, if more than one holder, the number of shares held by each of them
NOT DISCLOSED

5. Number of shares/amount of stock acquired
NOT DISCLOSED 6. Percentage of issued class
NOT DISCLOSED 7. Number of shares/amount of stock disposed
N/A 8. Percentage of issued class
N/A

9. Class of security
ORDINARY SHARES OF 27.5 PENCE EACH 10. Date of transaction
16 AUGUST 2006 11. Date company informed
18 AUGUST 2006

12. Total holding following this notification
101,847,379 13. Total percentage holding of issued class following this notification
3.44%

14. Any additional information
15. Name of contact and telephone number for queries
LUKE THOMAS 020 7111 7000

16.	Name of authorised company official responsible for making this notification LUKE THOMAS, DEPUTY GROUP COMPANY SECRETARY
	Date of notification: 21 AUGUST 2006