Q: In this task, you're given a statement, further information available on a particular linked term from the statement, and a question. Your job is to generate the answer to the question by using the information provided. If there is no clear answer obtainable, output 'none'.
Context: and supporter of Charles VI, Holy Roman Emperor as a claimant to the Crown of Spain Link Information: Holy Roman Emperor

Charles VI (1 October 1685 20 October 1740; , ) succeeded his elder brother, Joseph I, as Holy Roman Emperor, King of Bohemia (as Charles II), King of Hungary and Croatia, Serbia and Archduke of Austria (as Charles III) in 1711. Question: How many years did the man that Rafael Casanova supported as a claimant to the crown of Spain rule as Holy Roman Emperor?
A:
Answer: 29