I believe, according to the peerage, it is ten years, but ten years with Monmouth must have been like eternity, with time thrown in.
There are no more uses of "peerage" in the book.
Show samples from other sources
In the British peerage system, individuals are ennobled — not families.
I knew a little from our infrequent stays with Baron Greyfallow, and thought I was quite genteel enough without having to memorize forms of address, table manners, and the elaborate snarled rankings of the peerage.