All kick-off times from March 30 BST.
Certain venues are still to be confirmed.
Round 1
22 March
Ireland v France (venue TBC, 13:00)
Scotland v Wales (Hive Stadium, Edinburgh, 16:45)
23 March
England v Italy (York Community Stadium, 15:00)
Round 2
29 March
France v Scotland (Marcel Deflandre, La Rochelle, 13:00)
Wales v England (venue TBC, 16:45)
30 March
Italy v Ireland (venue TBC, 15:00)
Round 3
12 April
France v Wales (venue TBC, 12:45)
Ireland v England (venue TBC, 16:45)
13 April
Scotland v Italy (Hive Stadium, Edinburgh, 15:00)
Round 4
19 April
Italy v France (venue TBC, 13:00)
England vs Scotland (Mattioli Woods Welford Road, 16:45)
20 April
Wales v Ireland (venue TBC, 15:00)
Round 5
26 April
Scotland v Ireland (Hive Stadium, Edinburgh, 12:15)
Italy v Wales (venue TBC, 14:30)
England v France (Allianz Stadium, 16:45)
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