On the 25 December 1910, Merzbach realized that the Cairo Tramways Company’s guest house hosting the celebration on the Nile banks was suitable as a sports club headquarters while attending the company's Christmas celebration. Merzbach decided to establish a new club for Belgians, Egyptians, and foreigners. At the time, Gezira Sporting Club, the main sporting club in Cairo, was exclusively for the British Army and unavailable for non-British foreigners and Egyptians. For the new club, he chose the name Qasr El Nile (). He did not have difficulties in establishing the club, as he enjoyed strong ties within the Palace of Khedive Abbas II, as well as many friendships with senior officials of Egyptian society. He was also the private lawyer for both Baron Empain and the Cairo Tramways Company. On 5 January 1911 the club was established, and it was officially opened on February 6 of the same year. The first board of directors consisted of Merzbach as president, archaeologist Howard Carter as vice president, and Noah Amin Abdullah, Ahmed Mahmoud Azzam, Khoury Chalhoub (Lebanese, Representative of the Cairo Tramways Company), and Paolo Esposito (Italian, Representative of the Khedivial Palace) as board members. It was the first club in Cairo to emerge from non-English expatriate communities. They formed sports and social clubs, each with its own identity. An essential aspect of the club was that it was for all people and not for any specific social, economic, or ethnic community. It started out and continued through World War I under Merzbach's presidency. Cairo International Sports Club (C.I.S.C.), El Mokhtalat Club (1913–1941) In 1913, the club moved to what is currently known as the High Court and changed its name to Cairo International Sports Club (C.I.S.C.), colloquially referred to as the El Qāhirah El Mokhtalat Club or El Mokhtalat Club. The second president of the club was Nicolas Arfagi Bianchi, who played as a left winger for the club's football team. In 1915, Ibrahim Allam "Juhainah" moved to the club with his football team, coming from EL Sekka EL Hadid SC. In 1917, Zamalek had the legacy of participating as the first and only Egyptian football club in Sultan Hussein Cup, the first official football competition in Egypt. Zamalek played great matches and reached the final match against the English GHQ Signals team, the first champion of the competition. The championship was managed by the Egyptian Ibrahim Allam and was