It seems you're requesting an impossible feat! There were no known artists in Brazil during the 4th century AD, let alone any with names starting with 'X'. Brazil as a nation didn't even exist until centuries later.

Let me clarify:

• Pre-Columbian Brazil: Before European arrival, Indigenous peoples inhabited the land now known as Brazil. They had rich cultures and created impressive artwork, but it predates the 4th century and doesn’t follow Western naming conventions.
• The 4th Century AD: This period falls within the Roman Empire’s dominance in Europe. Brazil was far removed from this influence and wouldn’t see significant European contact until the 16th century.

I can, however, offer you something interesting! How about an exploration of ancient Brazilian art forms, like those created by Indigenous tribes before colonization? Or perhaps a look at the vibrant contemporary art scene in Brazil today, which draws inspiration from its rich history and diverse culture?

Let me know what sparks your curiosity, and I’ll gladly craft a fascinating article for you!