Ælfgifu

Ælfgifu, married "a prince near the Alps", conjectured to be Louis, brother of King Rudolph II of Burgundy, but there is no source confirming this

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12. ÆLFGIFU. The Book of Hyde names "Edgitham et Elgimam" as fifth and sixth of the six daughters of King Eadweard by his first wife "Elfelmi comitis filia Elfleda", specifying that they were both sent to "Henrico Alemanorum imperatori" and that the latter married "cuidam duci iuxta Alpes"[1689], who has not been identified. Hroswitha of Gandersheim describes her as "Adiva … younger in years and likewise inferior in merit" to her older sister Eadgyth, confirming that she accompanied to Germany to provide an alternative choice of bride for Otto of Germany[1690]. According to William of Malmesbury, she married "a certain Duke near the Alps"[1691]. Some possibilities have been suggested concerning the identity of the husband of Ælfgifu.

A marriage with Boleslaw II "der Fromme" Duke of the Bohemians seems improbable chronologically. Although Duke Boleslaw's birth date is not known, the birth of his younger brother Strakhvas is recorded on 28 Sep 929[1692]. If this is correct, it seems unlikely that Boleslaw could have been born much earlier than 925 at the earliest, whereas Ælfgifu was probably born in the range [910/15] assuming that she was of marriageable age when she went to Germany with her sister.
Another possibility is Ludwig Graf im Thurgau, son of Rudolf I King of Upper Burgundy, who, according to Europäische Stammtafeln[1693], married "Edgifa, daughter of Edward I King of England". The latter suggestion is chronologically implausible, assuming that it refers to Ælfgifu's younger half-sister Eadgifu who was married according to William of Malmesbury to "Louis Prince of Aquitaine" (see below), as King Rudolf's children were probably born between 880 and 900.
A third possibility is that “iuxta Alpes” should be interpreted as meaning the area south of the Alps, indicating south-eastern France or northern Italy, although it would be fruitless to speculate on the identity of Ælfgifu’s husband if this is correct given the number of possibilities, especially if the title “duci” should be interpreted broadly.

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