I'm currently writing some fiction about a lord and I'm struggling with when I should capitalise his title.
There are a number of circumstances.
When someone is referring to him or about him using his title:
"Of course my lord."
When the title is used as part of his name:
"Welcome Lord Smith."
Or in the third person:
What did the lord say?
The pattern I've found is to only capitalise when the title is used as part of the character's proper name - Lord Smith. When used in place of his name I've not capitalised.
"What did the young Lord say?"
Doesn't look right to me.
Is this approach correct? Is there a better rule to follow?