Came up in a discussion so now I'm curious, I know peasants were lucky to own more than two outfits. Let's say for arguments sake one of Alfred's nobles, but also curious what wardrobe the King himself would have had. I would assume at the very least a day to day garment, something for ceremonial occasions, and whatever military attire they would bring with them during campaigns.
We can actually assume very little about the quantities of clothing owned by anyone in the Early Medieval Period, for the simple reason that, outside of wargear, clothing is barely mentioned at all in contemporary textual sources, at least in practical terms. Unlike Later Medieval English wills which can have very extensive tables of goods and clothes, Early Medieval English wills are typically far more vague.
We do, however, have one very interesting exception: the late 10th/ early 11th century will of an English noblewoman called Wynflæd (Cotton Ch VIII 38). Wynflæd appears to have owned several outfits, and indeed owned both a cloth-weaver and a seamstress as slaves, whom she bequeathed to an Eadgifu, possibly her grand-daughter. To have two slaves employed solely in garment production is an indication that Wynflæd - and later Eadgifu - was not a woman who struggled to find a new outfit and presumably had an extensive wardrobe. Certainly, Eadgifu was also bequeathed "her best dun tunic" and "best cloak" among other items and jewellery (implying the existence of other cloaks and dun tunics), while a friend, Ceolthryth, was to receive ‘whichever she prefers of her black tunics and her best holy veil and best headband’ (Whitelock, 1930). One contentious item bequeathed by Wynflæd is a twilibrocenan cyrtel, once translated as a "badger-fur dress" but apparently more likely to mean an extensively embroidered dress instead (Thomas, 2016).
The 11th Century Flemish chronicler Goscelin in his vita of Saint Eadgyth also makes extensive reference to her extensive wardrobe of luxurious clothing through which "she made her humility more glorious by public elegance". A junior princess of the Cerdicing dynasty, Eadgyth reportedly had several chests full of expensive clothing, as well as regularly enjoying heated baths and her own private zoo.
While Wynflæd is a woman, it's quite likely from her wealth that she was at least a thegn's wife, if not that of an Ealdorman, and it's no great stretch to assume that her husband may well have had a wardrobe as extensive and well-appointed as hers. Early Medieval English society was, after all, one in which the conspicuous display of wealth was a powerful indication of status.