Complex sentence: He is unpopular amongst most of the staff, particularly Professor Snape; however, he is greatly admired by many others, particularly witches, such as Hermione Granger and Mrs. Weasley, who find him attractive.
Split into simpler sentences: He is unpopular amongst most of the staff, particularly Professor Snape. However, he is greatly admired by many others, particularly witches, such as Hermione Granger and Mrs. Weasley, who find him attractive.