I did not know about his Opus Dei connection ... extremely interesting.
Opus Dei set up shop in Coimbra, their first location in Portugal, at a location that was not of any great importance in Portugal overall, in 1946, but then in 1948 Sister Lucia allegedly requested to be transferred there, and Escriva claims to have met with Sister Lucia just days before they rolled out the imposter for Montini's visit.
Now, Montini helped orchestrate her transfer to Coimbra ... but, really, why? What did he have to do with Sister Lucia, being the Archbishop of Milan?