Which preposition to use with rosslyn

after Occurrences 1%

Read my drafts to Lord Rosslyn after dinner.

at Occurrences 1%

The Duke of Wellington passed the King at the head of his regiment, and Lord Rosslyn at the head of his.

for Occurrences 1%

At eleven set off with Lord Rosslyn for Windsor.

to Occurrences 1%

Walked with Lords Bathurst and Rosslyn to the Duke's.

Which preposition to use with  rosslyn