Complex sentence: The Siege of Szigetvár which blocked Suleiman's line of advance towards Vienna, and although an Ottoman victory, the battle stopped the Ottoman push for Vienna that year since Suleyman died during the siege.
Split into simpler sentences: The Siege of Szigetvár blocked Suleiman's line of advance towards Vienna. Although an Ottoman victory, the battle stopped the Ottoman push for Vienna that year, since Suleyman died during the siege.