Conversation so far:
When did Lawrence Alma-Tadema move to belgium?
In 1852 he entered the Royal Academy of Antwerp in Belgium.
Why did Lawrence Alma-Tadema move to Belgium?
He entered the Royal Academy of Antwerp in Belgium where he studied early Dutch and Flemish art, under Gustaf Wappers.

Question: What did he study there?
Self-contained rewrite: What did Lawrence Alma-Tadema study at the Royal Academy of Antwerp?