Brizzledrizzle The C14th series is Matthew Bartholomew by Susanna Gregory. The first book is A Plague on Both Your Houses. MB is a doctor who teaches at Cambridge University with his friend Brother Michael, they become a crime fighting duo. The series starts towards the end of the first wave of plague. I really enjoy them, but I should mention that they can be complicated, she introduces a lot of new characters because she keeps killing people off and it can be hard to keep track. The clues are there, but there tends to a big reveal towards the end to pull it all together. I am on book 16 and am yet to work out whodunit before it is revealed. Either they are really hard to work out or I think I'm just a bit thick. There is definitely a formula to them which you start to notice if you read a few in succession. It doesn't stop me enjoying them though. They are similar to the Cadfael series by Ellis Peters, only set later.
Susanna Gregory is the pseudonym of Elizabeth Cruwys, a Cambridge academic who was previously a coroner's officer. She is also one half of Simon Beaufort, author of the Geoffrey Mappestone series set during the Crusades. Plus she is one of the original Medieval Murderers, the group name of a band of writers (Philip Gooden, Susanna Gregory, Michael Jecks, Bernard Knight, Karen Maitland, Ian Morson, C J Sansom) who do group performances and have written a series of books together.
She has also written another series set during the reformation with a character called Thomas Challenor. I think they are very like the Shardlake books in a slightly different time period. I have read the first A Conspiracy of Violence, and I liked it, but I am saving them for once I have finished her first series and all the Shardlakes. I am on the 6th Shardlake on audiobook, but the puppy has decided this week she is afraid of the dark and will not leave the house so it has halved my listening time as I usually walk her with an audiobook on.
BonBonVoyage I have read 3 Karen Maitland books. Some are in the time period I prefer most of all (1100s-ish), but I don't really like them if I'm honest. They still keep finding their way home with me from the library though. I think the time period is interesting enough without adding 'magic' to it. I don't hate them, but don't love them either. I've also read 2 of the Ariana Franklin - Mistress of the Art of Death series - I liked the first, but not the second. I was grumpy when I read it though, so will give the third one a chance.
I loved Pillars of the Earth, did you now there is a 3rd one recently released? A Column of Fire I haven't read it yet.
There are a lot of medieval series that I haven't yet got around to so I can't recommend them personally, but have a look out for any of the Medieval Murderers listed above, they each have their own characters and series. The books they have written together have a plot that links all of their characters together so they might be a good start to see which author and character you like best. Others to have a look at include:
Clare Alys - Hawkenlye
Cassandra Clarke - Abbess of Meaux
Catherine Coulter - Medieval Song
Paul Doherty - Brother Athelstan/ Hugh Corbert/ Mathilde of Westminster / Sir Roger Shallot
Margaret Frazer - Sister Frevisse/ Joliffe the Player
Martin Jensen - King's Hounds
Bernard Knight - Crowner John
Shirley McKay - Hew Cullan
Ian Morson - William Falconer
SJ Paris - Giordano Bruno
Sharon Penman - Justin de Quincey
Candace Robb - Owen Archer
Kate Sedley - Roger the Chapman
Mel Starr - Hugh de Singleton
Ann Swinfen - Oxford Medieval Series
Peter Tremayne - Sister Fidelma
Michael Jecks - Knights Templar
If you do try any of these, do let me know what you think as I don't know who to move on to next. Although with another 7 Matthew Bartholomews to go I could be some time.