As per the title - and tbc, I imagine, but according to BMRCO info from last year, the intention is to hold the annual ‘Italian Day’ @ The Red Lion, Cassington on June 17th, 2023.
Looks like that’s a Saturday. Normally kicks off around midday. I’d be inclined to check with the hosts nearer the time, but maybe one for the diary.
Edit: adjusted to show now confirmed date - source: Italian Day Saturday 17th June 2023 | British Motorcycle Riders Club (Oxford)