Complex sentence: He was immediately declared a protective partner and was elected the 1st president of Sporting, functions that would stop the 4 of January 1910, happening then to preside to the General Assembly until 28 of July 1917.
Split into simpler sentences: He was immediately declared a protective partner and was elected the 1st. President of Sporting, functions that would stop the 4 of January 1910, happening then to preside to the General Assembly until 28 of July 1917.