Here’s a few ideas:
[name_m]Bertalan[/name_m]
[name_m]Beltrano[/name_m]
[name_m]Wolfram[/name_m]
[name_m]Ingram[/name_m], [name_m]Ingraham[/name_m]
Actually, I’m just going to copy and paste this whole ‘medieval or sounding quite medieval to me’ list I have, notes and all! Sometimes these are simply names unfamiliar to me because I am not part of the culture they come from
Many of these names I found from lists of current surnames too. The link is for a dictionary of medieval names, which you may also like!
the list
Aelred
Aelbert
[name_m]Balendin[/name_m]
[name_m]Balfore[/name_m]
Baskara
[name_m]Balin[/name_m]
[name_m]Balliol[/name_m]
[name_m]Balthazar[/name_m], [name_m]Balthasar[/name_m]
[name_m]Bannan[/name_m], [name_m]Bannon[/name_m], [name_m]Banan[/name_m]
[name_m]Banyan[/name_m]
[name_m]Baram[/name_m]
[name_m]Bertalan[/name_m]
[name_m]Bradach[/name_m]
[name_m]Cadmus[/name_m]
[name_m]Cadfael[/name_m] (sp?)
[name_m]Cadogan[/name_m]
[name_m]Cordovan[/name_m]
[name_m]Corcoran[/name_m]
Caspin
[name_m]Crispin[/name_m]
[name_m]Dalfon[/name_m]
[name_m]Elbert[/name_m]
Eudes (ood)
Everold
Goswin
Henricus
[name_m]Hubertus[/name_m]
Hubrecht
[name_m]Kadar[/name_m]
[name_u]Kalan[/name_u]
[name_m]Kasimer[/name_m]
[name_m]Kavan[/name_m]
[name_m]Kea[/name_m]
[name_m]Kearn[/name_m]
[name_m]Keldon[/name_m]
[name_m]Kelso[/name_m]
[name_m]Kenelm[/name_m]
[name_m]Kesar[/name_m]
[name_m]Kharald[/name_m]
[name_m]Kimbal[/name_m]
[name_m]Koenraad[/name_m]
Iran
[name_m]Krelis[/name_m]
[name_m]Kuefer[/name_m]
Novis
[name_u]Neri[/name_u] (medieval Italian)
[name_u]Padgett[/name_u]
[name_m]Paddrick[/name_m]
[name_m]Padraic[/name_m]
[name_m]Padraig[/name_m]
[name_m]Paladin[/name_m]
[name_m]Palben[/name_m]
[name_m]Palldine[/name_m]
[name_m]Parnell[/name_m]
[name_m]Parrie[/name_m]
Paren
[name_m]Parsifal[/name_m]
[name_m]Partholon[/name_m]
[name_m]Patten[/name_m]
[name_m]Pava[/name_m]
Paviel
[name_m]Pedrin[/name_m]
[name_m]Pelagios[/name_m]
[name_m]Pelagius[/name_m]
[name_u]Penrose[/name_u]
[name_m]Penrod[/name_m]
[name_m]Pepik[/name_m]
[name_m]Pepin[/name_m]
[name_m]Peran[/name_m]
[name_m]Perequin[/name_m]
[name_m]Perico[/name_m]
[name_m]Perine[/name_m]
[name_m]Parnell[/name_m]
[name_m]Pernell[/name_m]
[name_m]Pero[/name_m]
[name_m]Petras[/name_m]
[name_m]Petrik[/name_m]
[name_m]Purcell[/name_m]
[name_m]Roban[/name_m]
Tamias
[name_m]Unwin[/name_m]
Ury (m?)
Wyeth
[name_m]Zente[/name_m]
Femme mediaeval names ~
[name_f]Adelheid[/name_f]
[name_f]Affra[/name_f]
Britomart or Britomartis
[name_f]Melisende[/name_f] (from which we get Millicent)
Molle
Others for Queens:
[name_f]Uvelia[/name_f]
Claudenia credit to @maoise and below:
[name_f]Edithe[/name_f]
Patriana
[name_f]Melantha[/name_f]
From [name_f]Elsa[/name_f] Waldorf article
[name_f]Odolia[/name_f]?
From BTN
Aalis old [name_u]French[/name_u] for [name_f]Alice[/name_f]
Aithbhreac
Aldreda
[name_m]Aldus[/name_m]
Amée old [name_u]French[/name_u] [name_f]Aimée[/name_f]
[name_f]Alice[/name_f]
[name_f]Eula[/name_f]
Jocosa
Hrodohaidis (hrodo-high-dis)
Elizabeth | Dictionary of Medieval Names from European Sources
From census data:
marilda
alwine