Complex sentence: Although it was Palm Sunday, a day of holy significance to Christians, the forces prepared for battle and a few documents named the engagement the Battle of "Palme Sonday Felde" but the name did not gain wide acceptance.
Split into simpler sentences: Although it was Palm Sunday, a day of holy significance to Christians, the forces prepared for the battle ahead. As a result of this, a few documents named the engagement as the Battle of "Palme Sonday Felde", but the name did not gain wide acceptance.