I know the family tree from TWOIAF of the Targaryens, but is there a more complete tree that shows all the births of bastards and unmarried Targs? For instance, Aegon IV had NUMEROUS bastards, but had only 3 legitimate children; is there a more accurate tree (probs fan made, ya know?) displaying lineage for these bastards and such?
The biggest and most complete Targaryen family tree that I know of is this one on the Wiki of Ice and Fire. It doesn’t include all of Aegon the Unworthy’s bastards, unfortunately, only Daemon Blackfyre (and Viserys Plumm), but you can see some of their trees in the family tree category. Don’t overlook the Blackfyre tree, for that matter.
Though if you’re into giant family trees, you have to check out the all-ASOIAF family tree, which is seriously intense and does include all of Aegon’s bastards that we know of. As well as everybody else. It’s not quite as readable as the wiki’s trees, though. (And I think it makes one or two incorrect assumptions.) But it’s wildly ambitious, successfully so, and should not be missed. :)