Bellatrix uses the Cruciatus curse, an unforgivable curse, on them, until they turn insane. The Curse causes immense pain. For this act, she, along with her husband, brother-in-law-, and Barty-Crouch Jr are sent to Azkaban.
On 463-473.
Bellatrix LaStrange tortures Hermione while they are prisoners at the Malfoy home.
In Harry Potter and the Deathly Hallows, Bellatrix Lestrange tortures Hermione Granger at Malfoy Manor for information on Godric Gryffindor's sword.
Yes by either Bellatrix Lestrange or one of the Malfoys in the 7th book See link below: This video shows the cut that Bellatrix makes just after the torture. It was taken from the trailer so even though I think this is an indication that Hermione will be tortured in the film.
Bellatrix is a star
Bellatrix Lestrange, previously Bellatrix Black.
His Toad is named "Trevor"
Bellatrix has a daughter named Demetra.
bellatrix does not have a patronus because she is a death eater
Neville longbottoms date to the Yule Ball was Ginny Weasley
bellatrix did you can read it in the 5th book
Bellatrix and Mintaka are both in the constellation Orion.