Every Monday we will post an entry that hasn’t yet been published with a view towards harnessing the collective onomastic power of the internet. If you have any thoughts about the name’s origin, other variants it might be related to, other examples of its use, etc., please share them in the comments! If you wish to browse other Mystery Monday names, there is an index.
We’re now back at the beginning of the alphabet! Today’s name is a beautiful Catalan feminine name from the 16th century. Have you seen this name before? Do you have any thoughts about its origin or etymology? Please let us know in the comments!
Dictionary of Medieval Names from European Sources 
Tne entry is La viuda Aguilona, muller d’en Francesch Aguiló; I suspect that Aguilona is simply a feminized form of her late husband’s byname Aguiló. In the same Sant Steve section there is La viuda Vila-real, muller de Joan de Vila-real, quòndam, with a byname not readily feminizable. Under Brunaters the same source has La viuda na Maleta, muller de Luís Malet, quòndam, where Maleta is pretty clearly a feminization of Malet.
Catalan aguiló is ‘eaglet’, a diminutive of àguila ‘eagle’ (from Latin aquila), However, according to the Diccionari català-valencià-balear of the Institut d’Estudis Catalans it was formerly also ‘the north wind’, from Latin aquilōne, and it is a toponym.