Complex sentence: During the 13th century Lillingstone Lovell was known as "Lillingstone Magna" while Lillingstone Dayrell was recorded as "Lillingstone Parva"; this is believed to refer more to administrative ascendancy rather than territorial size.
Split into simpler sentences: During the 13th century Lillingstone Lovell was known as "Lillingstone Magna" distinguishing it from its neighbour sometimes recorded as "Lillingstone Parva". This is believed to refer more to administrative ascendancy rather than territorial size.