Aleksander of Malonne or Alexander of Malonne was a twelfth-century Walloon bishop of Płock, Poland.
He was bishop from 1129 to 1156 AD and was responsible for the construction of the current Cathedral of Płock in 1144.
[1] Aleksander is depicted in a figurative bas-relief on the original cathedral doors now in Velikiy Novgorod.
Depiction here is a copy currently hanging in Płock.
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