Norse gods family tree: what the Poetic Edda says, and what only Snorri says

The kinships of the Norse gods as the Poetic Edda states them — Ymir and the giants, Bur's sons, Odin's sons, Loki's brood, Njord's children, the nine mothers — stanza by stanza in Bellows's numbering, with the edges that exist only in the Prose Edda marked as such.