Complex sentence: Pommels were most commonly of the'Brazil-nut' type from around 1000-1200AD, with the'wheel' pommel appearing in the 11th and predominating from the 13th to 15th centuries.
Split into simpler sentences: Pommels were most commonly of the'Brazil-nut' type from around 1000-1200AD. With the'wheel' pommel appearing in the 11th and predominating from the 13th to 15th centuries.