I don't have an account, but I gave it that prompt as many times as it would let me, and it said: Erasmus; Socrates, Hypatia, or Benjamin Franklin; Benjamin Franklin again; and Socrates again.
Out of curiosity, I posed the same question to the models on duck.ai. GPT4o-mini said Ghandi, MLK Jr., or Nelson Mandela; Llama 4 Scout also said Mandela; Haiku 3.5 said Mandela too; o4-mini said Ghandi; and Mistral said Erasmus.
The double headed eagle on Serbia's (somewhat generic imo) flag gets a mention, but not Albania or Montenegro? I don't want to get involved in the Balkan rivalries, but ngl the Albanian flag is probably the most distinct and cool flag from the region other than maybe North Macedonia.