I was just wondering since in the episode credits the character is listed as Lord Asygarth. We know the names (or partially know) of Lord Merton and the Archbishop of York, yet they are not listed by name. Just curious, that's all.
As a non-official opinion, I believe the actual name when known should take precedence over the title since the title is not necessarily unique, while under Wikia, page names must be. Hence Miss Sybil Branson to distinguish her from her mother. Similarly, Lord Gillingham was Anthony Foyle's father at the start of DA and passed to his son upon his death.
What Ehj666 said. Besides, I'm all for consistency; and unless we had Robert Crawley under "Lord Grantham" or Hugh MacClare as "Lord Flintshire", we shouldn't list William Allsopp with the article title of "Lord Aysgarth".