Adrianus is a
Latin form of the name
Adrian. It is popular in the
Low countries, where Latinized
christian names or baptismal name were common from the 15th century until recently, especially after the papacy in 1522–23 of homegrown
Adrianus VI,
[1]who had been baptized "Adrianus" in 1459, as this event fell on the
name day of
Saint Adrian.
[2]People with the given name Adrianus generally use a short form in daily life, like Aad,
Ad, Adri,
Adriaan, Adrian, Adrie, Ard, Ariaan, Arian,
Arie, Ariën, Aris,
Arjan,
Arjen, or Janus.