Last of all, Ivan the Terrible born (3)
I believe the answer is:
nee
'born' is the definition.
('nee' is 'born' in French)
'last of all ivan the terrible' is the wordplay.
'last of all' suggests the final letters.
The last letters of 'ivan the terrible' are 'NEE'.
(Other definitions for nee that I've seen before include "(Of married woman) born (with name)" , "named as 14 [FIANCEE] ?" , "called before wedding?" , "Born in Paris" , "Prefix indicating maiden name before marriage" .)