Ringo's last meeting with Lennon?

How many times did Ringo meet up with Lennon after 1970?
Please fill in the blanks:

1970 - Plastic Ono Band sessions
?
1973 - I'm The Greatest hand delivery of song
?
1980 - November visit to the Dakota w/ Barbara

Other than these three times, did John and Ringo ever get
together after The Beatles?

marcus_gen...

During John's "Lost Weekend", approximately Spring '73 - Winter '74,
Ringo saw John in Los Angeles. I have no idea how often. I believe he
visited with him between 1974-1980, other than the Thanksgiving visit
in 1980.

Paul also visited John in L.A., and a couple of times at the Dakota in
the late 70s.

To the best of my knowledge John and George never saw each other after

donz5...

1971...but they are together now.

Keith Badman claims John flew to L.A. in September 1980 and visited
George at a Monty Python concert. I asked him for a (::gasp::) source
(see last question at bottom cite below) but wasn't convinced with his
response:

1971...but they are together now.

Brother Michael...

1974 Goodnight Vienna

Godzilla...

1976 Cooking song

Ehtue...

Cookin' (In the Kitchen of Love).

According to "John Robertson:" At the session, where John played keyboards
and presumably once again laid down a guide vocal for Ringo to follow,
everyone did their best to create a party mood; but 'Cookin'' was so slight
that it merely emphasised the hollowness of the song. The Lennon/Starr
relationship didn't suffer, however: Ringo cut two disco-flavoured albums
in the late seventies, but when he returned to rock in 1980, Lennon was
only too happy to oblige with the offer of material. You get the feeling
that whenever Ringo asked, Lennon would have come up with something."

(The Art and Music of John Lennon, page 178)