Legitimate Medieval Names for Game Character
In general any name found in a Medieval context would be acceptable. The following examples are not exhaustive, just representative. Also, remember that there are linguistic variations for many of these words: Thus, William in English, Guglielmo in Italian, Guillermo in Spanish, Liam in Irish, and so forth.
Female: Ame, Anne, Annette, Beatrice, Blanche, Catherine, Clare, Eleanor, Elena, Elizabeth, Giovanna, Isabelle, Jeanne, Juana, Louise, Margaret, Marguerite, Maria, Marie, Mary, Mary Elizabeth, Philippa.
Male: Adam, Ademar, Aimery, Aimone, Alain, Albert, Alexander, Alexandre, Alfonse, Alfonso, Alois, Alond, Amoury, Andre, Antoine, Arnaldo, Arnaud, Arnaut, Arnold, Aurelie, Aycardus, Baldwin, Barthol, Bartholomew, Benedict, Beraud, Bernabo, Bernard, Bertrand, Bodo, Boucherd, Carcie-Arnout, Carlo, Carlos, Cesar, Charles, Claude, Clement, Connor, Cosimo, David, Denis, Dinus, Edgar, Edmund, Edward, Engelbert, Enguerrand, Enrique, Ernauton, Espan, Etienne, Eudes, Eustance, Felix, Foucaud, Francesco, Francis, Frank, Gaston, Gaucher, Gautier, Geoffrey, George, Georges, Gerald, Gerloch, Gershon, Giacomo, Gigo, Gilbert, Gilles, Giovanni, Giroud, Gracien, Groynyn, Gruffyd, Guasbert, Guedon, Guglielmo, Guichard, Guichart, Guillaume, Guy, Hal, Heinrich, Henri, Henry, Herve, Hue, Hugh, Huguelin, Hugues, Humbert, Humphrey, Iacopo, Ian, Ingelram, Irad, Istfan, Itan, Jack, Jacob, Jacques, Jaime, James, Jaun, Jean, Jeanne, Jesus, John, Jomo, Jonzac, Joseph, Joshua, Joyeuse, Juan, Karl, Karlito, Kendal, Lapurd, Laurence, Liam, Lionel, Lons, Lorenc, Loudeac, Louhans, Louis, Lucchino, Ludwig, Malachais, Marc, Mastino, Mathieu, Maurice, Max, Mortimer, Nicholas, Norman, Obizzo, Odo, Oleg, Oliver, Olivier, Orian, Othe, Owain, Owen, Pablo, Padre, Paolo, Pascal, Pasqual, Pedro, Percy, Peter, Petrus, Philippe, Pierre, Pierre Roger, Ralph, Raniero, Raoul, Raymond, Reginald, Regnaut, Renard, Richard, Robert, Roger, Roland, Sean, Seifried, Simon, Simone, Sohier, Stephen, Sylvestre, Tannequy, Teodoro, Thierry, Thomas, Toby, Tomas, Tomaso, Tristan, Umberto, Wachter, Walderon, Waleron, Wauthier, William, Yvain.
Most names had interesting histories, as the examples of saint's names below demonstrate (the "V" indicates a virgin martyr)..
Rolendis (V). Her life is a hagiographic romance of the 12th century. According to the current legend, she was the daughter of a Gallic king, Desire'; to escape being married to an Irish prince, she fled to Cologne, but died before arriving there, after one week's sickness. She is patroness against gravel and colic. Useful Saint to name your child after if you are engaged in roadbuilding or suffer from a delicate stomach.
Romana (V). According to the spurious "life" of S. Silvester, she was the daughter of a prefect of Rome. She secretly was baptised and left home to live in a cave with a band of male Christian solitaries at the age of 18. She is an excellent patroness for those contemplating a career in time share sales and diplomacy)
Pharaildis: Patroness of the city of Ghent. Some claim she preserved her virginity in wedlock. Others claim she was maltreated by her husband, Guido, on account of her constant nocturnal visits to churches.
Ronin: An Irish saint, founder of the abbey of Beaulieu in the Argonnes. He is venerated in the British Isles, France, and Belgium.
Roseline (V) Prioress in Provence 1300. She exercised great powers over demons.
Rostang de Capre: Archbishop of Arles. He is noted for holding a reform synod at Isle, in 1288, against simony.
Theobald, (Hermit) Patron of charcoal burners and the city of Provins.
Theophilus Scholasticus (M) Known as "the Lawyer". He claimed that S. Dorothea sent him flowers and fruit from Paradise. His "acts" are considered untrustworthy.
Reference: A Biographical Dictionary of the Saints. Rt Rev F.G. Holweck,
Domestic Prelate to His Holiness Pope Pius XI. 1924 London
Here's a few more, without as much detail.
Boys:
Aaron, Abel, Adam [Biblical]
Aidan [Irish, 7th-cent. Saint]
Alaric [4th cen, King of Visigoths]
Alban [4th cen. English martyr]
Amory, Amery
Amos [Biblical prophet]
Angus [Scot/Gaelic]
Anselm, Anselme [12th Cen. Saint]
Arno, Arnoux[Fr] [from Old German]
Arthur
Asa [Biblical]
Aubrey, Albaric [Fr]
August, Auguste, Agosto, Augusto, Augustine, Austin [all variants of the Augustus]
Baird [Scot, Ir.]
Balder/ Baudier, Baldric/Baudric [7th Cen. French religious leader]
Baldwin, Baudoin, Baldovino
Balthasar, Baldassare [It.]
Bardolf/Bardolfus, Bardoul
Barnabas, Barnabe
Barnard, Barret, Baret
Basil, Basilius, Basile, Basilio
Bayard, Baiardo, Berger, Bern
Berthold, Berthoud, Bertoldi
Bertram, Bertrand, Blaine, Blayne, Blane
Blaise, Blasius, Blas
Boniface, Bonifacius, Bonifacio
Bran, Bram [Celt.,Eng.]
Brendan, Brian [Irish, Celt]
Bruce, Bruno [12th C. Saint], Burchard, Burkhart [Ger], Burgaud [Fr]
Cadell [7 cen. Welsh Saint]
Canute [11th Cen King of England/Denmark]
Casimir, Casimiro
Cecil, Cecilius
Chad [7th cen. Eng. Saint]
Carl, Carlo, Karl, Karel [Dut.]
Christian, Chretien, Kristian, Christiano
Christopher, Christophe [Fr], Cristobal [Sp], Cristoforo [It]
Cian [Irish/Gaelic], Claude, Claudius, Claudio
Clement, Clemente, Clementius
Clovis, Clodoveo [Sp], Colman [11th cen. Saint]
Conan [7th Cen Irish St.], Conrad [12th Cen Saint]
Constantin/o, Cornelius, Cornelio
Cosmo, Cosmos [3rd Cen Saint], Cosimo, Cosme [Fr]
Cyprian, Cipriano [3rd cen Saint]
Cyril, Cyrille, Cirillo, Cyrillus
Cyrus, Ciro [Sp]
Eachan [Irish]
Ebenezer [Bib.]
Edbert, Edelmar [Old Eng.]
Edgar, Edmund, Edric, Edsel, Edison, Edwald, Edward, Edwin
Egbert, Elden, Eldon
Eleazar, Eli, Elias, Elijah, Elisha [Hebrew, Biblical]
Ellard, Ellis, Ellison, Elmer
Elmo [Ital]
Elmore, Elsdon, Elston, Elsworth, Elton, Elwell, Elwin
Elwood, Emery/Emmerich/Amerigo
Emmanuel, Emmett, Enoch
Eric, Erland, Erling, Ernest
Erwin, Esmond
Ethan [Heb.]
Eugene, Eustace
Evan [Irish], Everard, Everley, Ewald
Ezekiel, Ezra [Biblical]
Zebulon [Biblical]
Fabian, Fabius, Fabio
Felix, Ferdinand
Fergus
Fidel, Fidelio, Fidele
Flavius, Fortunatus
Francis/Francois/Franz/Francesco/Francisco
Frederic/k,Federigo, Federico
Gabriel, Galen, Gamaliel
Garland, Gariland
Garrett, Garrard, Gerard
Gaspar, Gaspard
Gaston, Gavin, Gawain
George, Georges, Giorgio, Jorge
Gerald, Geraud/Giraud, Giraldo
Gerhard, Gideon, Gilbert
Giles, Gilles
Gladwyn, Gladwin, Goddard, Godard
Godfrey, Gottfried, Geoffrey
Godwin, Goodwin, Godewyn
Grant, Gregory/Gregoire, Gregor
Griffith, Gus, Gustave, Gustavus
Guy, Gyles
Hadwin, Halbert, Hale
Hans, Harbin, Harding, Hardwin, Hardy
Harlan, Harley
Harold, Harald, Herold, Araldo
Harry, Hartman, Harvey, Herve/Hervey
Hector, Ettore [Ital]
Henry, Henri, Enrico, Hendrick, Heinrich, Enrique, Hendrik
Herbert, Hebert, Harbert
Herman, Harmon, Ermin, Armand/o
Herrick, Hilary, Hilarius, Hilaire
Hilliard, Hiram, Hobart
Homer, Horace, Horatio, Horatius
Howard, Hubert
Hugh, Hugo, Hugues, Ugo
Hulbert, Humbert, Humphrey, Onofredo
Hurlbert, Hyman
Ian, Ignatius, Ignace, Ignacio
Immanuel, Ira, Isaac, Ives/Yves
Jack, Jacques
Jacob, Giacopo
James, Jaime, Diego [Sp.], Giacomo [Ital]
Jedediah, Jeffrey, Jeremy, Jeremias
Jerome, Gerome
Jesse, Joel, John/Jean/Johann/Johannes/Juan/Giovanni
Jonas, Jonathan, Joseph, Joshua
Julius/Jules/Julio/Giulio
Justin, Justus
Vladimir, Vincent/e, Valerian
Valentin/e, Valentino
Urban, Urbano, Urbaine, Ulysses
Tobias, Timothy, Timoteo, Timothee
Theodoric, Dietrich, Theobald, Thibaut/Thibaud
Talbot, Talebot
Swayn, Sweyn [11th cen King of Denmark]
Stephen, Esteban, Etienne, Stefan/us, Stefano
Solomon, Salomon, Simon, Simeon
Silvester, Sylvester, Silvestre, Silvestro
Sylvanus, Silvanus, Silvio, Silvano, Silas, Sylvain
Sigmund, Sigismund/o, Siegfried
Serge, Sergius, Sergio
Seger, Sigehere, Seager
Sebastian, Sebastien, Sebastiano
Saer, Sayer [Welsh/Cornish]
Saul, Samuel, Samson, Sanson/e
Sabin, Sabinus
Yves, Ives [13th cent. Saint]
Wynn [Old Welsh]
Wolfgang [german]
Wilfrid, Wilfred [8th cent. Saint]
Wenceslaus [10th cen Saint, King of Bohemia]
Warin, Guarin
Walter, Gautier,Gualtiero, Walther
Waldemar, Valdemar
Girls:
Abigail
Abra [Biblical, 'Mother of multitudes']
Adeline [var. of Adele]
Agatha [3rd cen. Saint]
Alberta [3rd cen. Martyr/Saint]
Alexandra, Alexandrine, Alessandra [It], Alejandra [Sp]
Alice, Alicia, Alix
Allegra [It]
Amelia, Amalia, Amelie, Emmeline
Aimee, Amata [Sp, It]
Anastasia,Anastasie
Antonia, Antoinette, Antoinetta
Audrey [7th cen. Saint]
Aurelia, Aurelie [11th cen. French princess]
Beatrice, Beatrix
Benedicta, Benedetta, Benita
Bernadette, Bernadine, Bernita
Bertha, Berthe, Berta
Blasia, Bridget, Brigitte, Brigida
Camille, Camilla, Candide, Carmela, Melina
Carmen, Caroline, Cecilia, Cecile
Charlotte, Carlotta
Chloe, Christine, Christiane, Cristina
Clara, Claudia, Claudette, Claudine
Clotilda, Clothilde [6th cen Saint]
Columba, Columbine, Colombe
Constance, Constanza, Constantina
Cornelia
Eartha, Ebba, Eda, Edina, Edwina
Edith, Edmonda, Edna, Egberta, Eglantine
Elaine [Var. of either Helen or Eleanor]
Eldora [Span.]
Eleanor, Eleanore/a, Leonore, Lenore
Elena, Elfrida, Elizabeth [and all variations]
Ella, Elmira, Eloise
Elsa [Ger.]
Emeraude, Esmerelda [Fr, Span., 'Emerald']
Emily, Emilia, Emilie, Emma
Enid
Enrica [It.,Span.]
Erma, Ernestine, Erwina
Estelle, Esther, Ethel
Eudora, Eudocia, Eugenia, Eulalia, Eunice, Euphemia, Eustacia
Eve, Evangeline
Fabia, Faith
Faustine/a
Felice, Felicia, Fernanda, Fernandina
Florence, Florentia
Frances, Francesca, Francoise
Frederica, Frederique, Federica
Gabrielle, Gabriela
Gemma, Geneva, Georgia, Georgette, Genevieve
Geraldine, Gertrude
Gillian, Ginevra, Guinevere
Giselle, Gladys, Gloria
Godiva, Grace, Gregoria, Griselda
Hagar, Halfrid, Halfrida
Hannah, Haralda, Harriet
Hazel, Hedwig [Ger.]/Hedvige [Fr.]
Helen, Helene/a, Elena
Helma, Hilma
Heloise, Henriette/a, Henrika, Enriqueta
Hermosa [Sp.]
Hertha, Hester, Hilaria
Hild, Hilde, Hilda, Hildegarde
Hildemar, Hildreth, Holda, Hulda
Honoria, Horatia
Hortense, Hortensia, Huberta
Huette, Huguette
Hypatia
Ida,Ignatia, Inez, Irma
Isabel, Isolde
Jacoba, Jacqueline
Jane, Jeanne, Joan, Juana, Johanna, Giovanna
Jemima, Jeremia, Jocelyn
Josephine, Josepha
Judith, Julia, Juliet/te
Justine
Vivian, Vibiana, Vivienne
Virginia, Virginie
Violet, Violette, Viola, Iolanthe
Vincentia, Victoria, Vittoria
Veronica, Valerie, Valeria, Valentina
Ursula, Ursule
Timothea, Thomasa, Thomasine/a
Theresa, Therese, Teresa
Theodosia, Theodora, Teodora
Thecla
Sylvia, Silvia, Silvana, Silvie
Susanna, Susanne, Stephana, Stephanie
Sophie, Sophia, Simone, Simona
Sybil, Sibyl, Sybilla, Sibylle
Seraphina, Serafina, Seraphine
Sebastiana/e, Sarah
Samuela, Samuelle, Sabina, Sabine
Zoe, Yvonne, Yvette
Yolanda, Yolande
Wilhelmina, Guillemette, Wilhelmine
Here's a list of some Saints' names, most of which are not used in the game, but can be. Some of these saints names do not predate the 14th century; but all of them should be quite usable for the period. Several of them are typically English, but many can be used in whatever foreign variation you happen to speak [ie, Pascal/Pasquale, Roderick/Rodrigo, etc.]
English/Irish names that don't seem to have foreign variations: Boys: Oscar, Fergus, Brendan, Edgar, Brian, Crispin, Godwin Girls: Gladys, Prudence
Others that can probably be adjusted to your particular ethnicity:
Boys: Ambrose, Aubert, Aldo, Abraham, Adrian Basil, Bruno, Barnabas Caspar/er, Clement, Clarence, Casimir, Cornelius, Cyril Darius Emil, Emile, Eustace Francis, Franco, Fabian Gregory/Gregoire, Godfrey, George Hilary/ Hilaire, Isidor/e, Justin, Jeremiah, Joachim/Joaquin, Julian Leo, Leopold, Laurence, Lucian/Lucien Malachi, Matthias/Matthew, Milo, Martin Pascal/Pasquale, Roderick/Rodrigo, Rupert Salvator/e, Zachary/Zachariah/Zacharie
Girls: Adelaide, Augusta, Aurelie/Aurelia, Ada, Adele/Adela, Agnes, Anglea Bertilia/Bertilla, Camille/Camilla, Calliope, Cecile/Cecilia Eve, Delphine/Delphina, Eugenie/Eugenia, Emma, Eulalie, Emilia/Emiliana Genevieve, Gwendolyn, Flora, Flavia, Honorata Lucida, Julia, Justine, Lucille/Lucilla, Lydia Martine/Martina, Monica, Natalie/Natalia, Mathilde/Mathilda Priscilla, Stephane/Stephanie Veronica, Winifred, Valeria/Valerie, Theresa/Therese, Tatiana, Yvette