Chavez Visit to Spain Sparks Coup Controversy &lt;p&gt;&lt;/p&gt;&lt;p&gt; By Daniel Flynn&lt;/p&gt;&lt;p&gt; MADRID (Reuters) - Venezuelan President Hugo Chavez'sfence-mending visit to Spain sparked political uproar onTuesday when Madrid for the first time backed his allegationsthat the former Spanish government backed a coup against him.&lt;/p&gt;