Mmh, might be worth mentioning Shezarr who has gone Missing and the whole stick about having the roughly the same Eight Gods in each Phanteon before getting into the Lorkhan-regrouping thing.
For Shezarr and and the Phanteons:
http://www.imperial-library.info/obbooks/shezzardivines.shtml
http://www.imperial-library.info/mwbooks/varietiesoffaith.shtml
Why Tiber and an avatar of Shor were sharing an indentity:
http://www.imperial-library.info/mwbooks/wulfharthsongs.shtml
http://www.imperial-library.info/mwbooks/arcturian.shtml
Why it matters:
Tiber Septim: "The Stormcrown manted by way of the fourth: the steps of the dead. Mantling and incarnation are separate roads; do not mistake this. The latter is built from the cobbles of drawn-bone destiny. The former: walk like them until they must walk like you. This is the death children bring as the Sons of Hora." - http://www.imperial-library.info/obscure_text/nu-hatta.shtml