We are saddebed to hear of the sudden death of Luis Mansilla. Luis was a man of wonderful character and was one of our generation's great architects. Together with Emilio Tuñón, he has made an enormous contribution to the practice and its discourse. The spectacular buildings of Mansilla+Tuñón, as well as Circo, their academic pamphlets, are a testimony to their passion and commitment to architecture. On behalf of all those at FMA, I would like to offer our sincere condolences and support to Luis' wife and children, his colleagues and friends, wishing them endurance and strength in thsi time of loss.