Dear Rene,
> -- Ca. 200 CE. Clement of Alexandria alludes to India several times in his
> writings. He writes: [snip] [Strom. 1.71.5]
The quote you give from the Stromata continues: "Some, too, of the Indians
obey the precepts of Buddha; whom, on account of his extraordinary sanctity,
they have raised to divine honours."
There are apparently other references to the Buddha in Clement's writings
such as the Homilies -- in which one I do not have the reference to hand
though he did write quite a number of these.
Best wishes,
Stephen Hodge