Architectural Style of 16th-C Italian Palazzos
Puzzle 5 of Architectural Styles Hard Pack
Question is: Architectural Style of 16th-C Italian Palazzos
and the answer is: MANNERISM
Word Meaning:
MANNERISM — A noticeable personal habit, a verbal or other (often, but not necessarily unconscious) habitual behavior peculiar to an individual.
Definitions from Wiktionary.