We do have:
1 - Italian architects outside Italy
2 - Designed by famous architects
3 - Multiple works of a single architect
4 - Separate connections for individual architects, such as Mimar Sinan
, the Lei family
While 1 and 3 have a certain niche value, I think 2 is just a long list of names.
Also, I received a long list from Caspar Dechmann
where he singles out some 13 other architects (such as de Botaica, Fischer von Erlach, Hardouin-mansart, Le Notre, Sanmicheli and Schinkel) that have been active in 3 or more WHS.
What do you think - should we discontinue connection 2 as described above, and replace it by connections per architect?
And are there any limitations to having a connection for a single architect. I think 'famous' isn't really a criterion. But we could limit it to architects that have been active in more than 1 country (originally that was kind of a rule for all connections).