Thanks guys, I knew some of you would appreciate it.
It's a bit awkward to switch between memorials and beer, but I guess I started it. St Bernardus was mentioned - it wasn't immediately clear to me that Westy 12 is indeed the greatest, so I got a selection of quads to do a tasting with. Sadly the Chimay Bleue is missing. I'm planning to do it together with a couple friends, as it's a big deal to open another bottle of Westy, and also 4x 10% beer should easily feed us

Happy to report back.
Stijn, I knew you were somewhere in Flanders, but didn't think to contact you as we were in a rush the whole trip. It's only a short detour from Calais so next time we cross, I might drop you a line! Maybe we meet at In de Vrede so I can taste the other beers from the abbey.