Complex sentence: He died May 26 (or 25), 1531, after a long sickness, and would have been buried in unconsecrated soil but for the intercession of his oldest son, Charles, who gave security for the discharge of his father's obligations.
Split into simpler sentences: He died May 26 (or 25), 1531, after a long sickness. He would have been buried in unconsecrated soil but for the intercession of his oldest son, Charles, who gave security for the discharge of his father's obligations.