Prague
Cernin Palace - the Czech Foreign Ministry. 10 Mar 1948 Jan Masaryk (the only non communist in the Soviet installed government) was found dead in the courtyard under the bathroom window. At the time it was claimed to be a "suicide". Subsequent investigations have been unclear but the probability is assassination. So it could be "connected" to either or both subjects.

Ah yet another of the many defenestrations of Prague.

Also in a link between two WHS, St John of Nepomuk was assasinated by being thrown of Charles Bridge. The Pilgrimage Church at Zelena Hora is entirely inspired by this act.

(ah just noticed that one is already on there)