Complex sentence: In 1836 he was president of the "Supremo Poder Conservador", an institution of five members established under the Seven Laws with the power to dissolve Congress or the Supreme Court.
Split into simpler sentences: In 1836 he was president of the Supremo Poder Conservador. This was an institution of five members established under the Siete Leyes with the power to dissolve Congress or the Supreme Court.