Greetings!

Here is my commentary on those two items:

1.  Tancred of Thescorre - To add to this, R&W s.n. Tancred has <Tancredus filius Bernardi>, <Tancredus de Witton> 1252, <John  Tankred> 1389.  They also concur with the German origin.

Because he's using an SCA branch name, there's no way that this is an 11th-13th century Norman name, but since he didn't request authenticity, there's no reason not to send this through.

2.  Wilhelm Smydele von Soelinge - The closest I found was Edric of  Scardburgh (reg. 03/2002 via Atlantia), "Argent, a double-horned anvil sable and on a chief vert a straight trumpet Or."  There is one CD for changing the chief to a bordure, and one for removing the horn.

In service,
-Aryanhwy merch Catmael
herald-at-large, Drachenwald