"The spread of the legend of Barlaam and Josaphat in medieval Europe was a cultural phenomenon second to none at the time. Poetic and dramatized versions of the legend became what today would be called ‘bestsellers’. In Christian Europe these two names were commonly known and the Buddha as St Josaphat became a Saint with his own feast day in the Christian calendar: 27 November." (The Buddha's long journey to Europe and Africa)
That was yesterday the feast of the Christian saints appropriated by Christianity from Buddhism. Today is Thanksgiving in the USA, and I'm grateful for the spread of knowledge about the true Buddha.
Another interesting parallel is St. George and Manjushri. Both have swords in their icons, and St. George slaying the devil is similar imagery invoked by Manjushri's sword cutting through ignorance.