She was named after important people in her father's life. Lily - after his mother and her parental grandmother, Lily Evans, who died to protect Harry from Voldemort when he was just a baby. read more
Harry named his children after people who gave their lives to save him. James Potter sacrificed himself on the night Voldemort came after Harry. Sirius Black died fighting Bellatrix in the department of mysteries in order to get Harry, Ron, Hermione, Ginny, Luna and Neville out. read more
And Harry's only able to get there because of lesson he learned from Dumbledore and Snape — the two people Albus is named after. Dumbledore first appears in the "Harry Potter" series as an all-powerful saintly wizard, but his legacy becomes more complicated. read more