Clash of Kings by George R. R. Martin
" [...] They are bastards. The girl as well. All three of them abominations born of incest.”
Would even Cersei be so mad? Catelyn was speechless.
Martin writes about Cersei [the queen] having three children who are not highborn. Cersei is married to the king, but the king is not the father.
Does "would be" mean "was" in this context? If this is the case, is used to express uncertainty?
Thanks in advance