He is later in the book when Squirrelflight becomes Brambleclaw's mate. They are not related by blood though.
Edit by B2stluber on March 27, 2012:
Well, the whole "kin" and "related" thing is really confusing, especially if they are the "kin of Firestar's kin, who hold the power of the stars in their paws" (the prophecy). Later in the series you find out that (if you didn't read up to here, sorry? ^_^) Squirrelflight is NOT the mother of Jawpaw, Hollypaw, and Lionpaw. She and Bramblepaw are not mates, but Leafpool is their birth mother. (She was a medicine cat; so she was forbidden to have a mate or kits, although a few broke the rule.)
Therefore, Firestar is NOT related to Tigerstar anyhow.
(I'm sorry if I spoiled the whole book for you....)
Firestar, Blackstar, Tallstar, and Leopardstar
I believe it has been confirmed by the Erin's that Firestar will indeed die soon. I know Leopardstar will die in OOTS; that one has already been confirmed.
this is an opinion to me it would be Firestar
Puss did not have kits.
Leopardstar looks like a leopard. hense the name. --- Leopardstar is described as an "unusually spotted golden tabby she-cat with amber eyes." Firestar (as a warrior) also makes a few references that imply her being somewhat heavier than him; though, admittedly, she was quite a bit older than Fireheart, this may indicate that she also has an unusually broad or bulky build for a she-cat.
You use your opinion to know which warrior you like better . . . I like Firestar better, personally
Sadly, Erin Hunter releases news that Firestar's death scene has already been scripted, rough drafted, and in the book that will come out July of 2012. in CATS OF THE CLANS Rock tells the kits " Ha! Who knows how every one of Firestar's lives will end!" did you get the catch? Rock is saying he knows how Firestar's lives will end but will refuse to tell any cat. A cat is a cat Firestar is no different from Tigerstar or Leopardstar, their lives all ended somehow and so will Firestars. Thanx, Silver123
Leopardstar dies in Fading Echoes
Leopardstar's warrior name was Leopardfur.
Sasha and Leopardstar had a love hate relationship.
Yes, Leopardfur was Leopardstar's warrior name.
Leopardstar's parents were Brightsky and Mudfur. Hope I helped :D