Monarch, businessman, banker, art collector, visionary and outspoken controversialist: Prince Hans-Adam II of Liechtenstein is all of these. As he turns 75, and as the Principality which bears his family name celebrates its 300th anniversary, Hans-Adam II can enjoy a record of unusual success and look forward to the future with undiminished energy.Despite his background, his successes did not come easily. For centuries the Liechtenstein family was at the heart of the Habsburg Monarchy's affairs ...