A fragment of the mythographer Pherecydes provides an interesting account for how Odysseus came to be married to Penelope (hint: it wasn’t his choice):
Pherecydes, fr. 90 (= Fowler 129)
“Ikarios, the son of Oibalos, married Dôrodokhês, the daughter of Ortilokhos or, according to Pherecydes, Asterôdia, the daughter of Eurypylos, the son of Telestôr. When Laertes heard about Penelope—that she differed from all women in both her beauty and her intelligence, he arranged for her to marry his son Odysseus. She possessed so much virtue that she surpassed even Helen who was born from Zeus in some degree. This is the account of Philostephanos and Pherecydes.”
Schol. Homer. Odyss. Ο, 16: ᾿Ικάριος ὁ Οἰβάλου γαμεῖ Δωροδόχην τὴν ᾿Ορτιλόχου, ἢ κατὰ Φερεκύδην, ᾿Αστερωδίαν τὴν Εὐρυπύλου τοῦ Τελέστορος. Πυθόμενος δὲ Λαέρτης περὶ τῆς Πηνελόπης ὅτι καὶ τῷ κάλλει καὶ ταῖς φρεσὶ διαφέρει πασῶν τῶν καθ’ ἑαυτὴν γυναικῶν, ἄγεται αὐτὴν τῷ παιδὶ ᾿Οδυσσέϊ πρὸς γάμον· ἣ τοσαύτην εἶχεν ἀρετὴν, ὥστε καὶ τὴν ῾Ελένην τὴν ἐκ Διὸς οὖσαν τῷ τῆς ἀρετῆς ὑπερβάλλειν. ῾Η δὲ ἱστορία παρὰ Φιλοστεφάνῳ καὶ Φερεκύδῃ.
This story, of course, runs against a more famous version that isn’t exactly compatible (although one could imagine finding some way to match the two tales):
Apollodorus, 3.132
“When Tyndareus saw the mass of suitors, he feared that once one was selected the rest would start fighting. But then Odysseus promised that if he aided him in marrying Penelope, he would propose a way through which there would be no fight—and Tyndareus promised to help him. Odysseus said that he should have the suitors swear an oath to come to the aid if the man who was selected as bridegroom were done wrong by any other man regarding his marriage. After he heard that, Tyndareus had the suitors swear an oath and he himself chose Menelaos as the bride groom and he suited Penelope from Ikarios’ on Odysseus’ behalf.”
τούτων ὁρῶν τὸ πλῆθος Τυνδάρεως ἐδεδοίκει μὴ κριθέντος ἑνὸς στασιάσωσιν οἱ λοιποί. ὑποσχομένου δὲ ᾿Οδυσσέως, ἐὰν συλλάβηται πρὸς τὸν Πηνελόπης αὐτῷ γάμον, ὑποθήσεσθαι τρόπον τινὰ δι’ οὗ μηδεμία γενήσεται στάσις, ὡς ὑπέσχετο αὐτῷ συλλήψεσθαι ὁ Τυνδάρεως, πάντας εἶπεν ἐξορκίσαι τοὺς μνηστῆρας βοηθήσειν, ἐὰν ὁ προκριθεὶς νυμφίος ὑπὸ ἄλλου τινὸς ἀδικῆται περὶ τὸν γάμον. ἀκούσας δὲ τοῦτο Τυνδάρεως τοὺς μνηστῆρας ἐξορκίζει, καὶ Μενέλαον μὲν αὐτὸς αἱρεῖται νυμφίον, ᾿Οδυσσεῖ δὲ παρὰ ᾿Ικαρίου μνηστεύεται Πηνελόπην.
Oath of Tyndareus is interesting in how the ritual was carried out, i.e.by suitors standing on pieces of a horse, which was then buried in a tomb. This one and the funeral fire of Patroklos where horses were sacrificed are the few instances I am aware of that involves horse burial (which I am interested in) in stories related to the Iliad. Here is the excerpt from Pausanias 3.14-26. I think the oath of Tyndareus must be a rather old myth.
[3.20.9] Further on is what is called the Tomb of Horse. For Tyndareus, having sacrificed a horse here, administered an oath to the suitors of Helen, making them stand upon the pieces of the horse. The oath was to defend Helen and him who might be chosen to marry her if ever they should be wronged. When he had sworn the suitors he buried the horse here. Seven pillars, which are not far from this tomb . . . in the ancient manner, I believe, which they say are images of the planets. On the road is a precinct of Cranius surnamed Stemmatias, and a sanctuary of Mysian Artemis.