More ideas from Sann👼💫♥
Well, that's changed. Isabelle and Simon can now have babies since Simon is a shadowhunter. And Magnus and Alec have adopted a warlock child and a shadowhunter child already. So no, the name will live on.

Sizzy could have children now that Simon is a shadowhunter, but their child wouldn't be a Lightwood. Alec and Magnus adopt a child so boom. Restored name.