Historical romance: a Scot inherits a dukedom, he has 2 sisters he's brought to London, he knows none of society's rules & keeps making mistakes, heroine teaches him the rules and how to waltz.

[Lyndol]

It's a historical romance with a scot that just inherited a dukedom. He has 2 sisters he has just brought to London and knows none of societies rules. I think he has the nickname of the murder duke. The heroine keeps teaching him the rules of society and her aunt and uncle I think is a duke and duchess too. She even teaches him to waltze and he falls on her. The aunt duchess apparently has 4 redheaded females she is going to try to marry off that season. This new duke is clueless about societies rules and keeps making mistakes in the beginning of the book. If anyone knows which book this is please help.

[Kris]

Lyndol, I moved your request to the Unsolved folder because you're looking for a specific book.

What year did you read this book? This will help narrow down the search.

Please add plot details (and genre) to your topic header using the edit link on the desktop, not mobile, website. This will help people searching for books. Just ask if you'd like assistance with this.

[Juels]

The Trouble with Dukes by Grace Burrowes?

[Kris]

Juels' suggestion of The Trouble with Dukes seems to match your description.

"No one was fiercer at war than Hamish MacHugh, though now the soldier faces a whole new battlefield: a London Season. To make his sisters happy, he'll take on any challenge—even letting their friend Miss Windham teach him to waltz." | "...four female cousins: Beth, Charlotte, Megan, and Anwen. They were lovely young women, redhaired..."

Some Goodreads reviewers say, "Hamish MacHugh, the newly appointed Duke of Murdoch..." | "...social niceties....Hamish MacHugh’s lack of them. Instead, Megan finds herself drawn to the unrefined, but genuine man..." | "...he has two sisters of the age to marry..."

Here is the Google Books preview - https://books.google.com/books?id=3v_... There are different cover images.

[Kris]

Added plot details to the topic header. Feel free to edit it using the desktop website (not the mobile app).

[Lobstergirl, au gratin]

Lyndol, was your book "The Trouble with Dukes" or are you still looking?

[Monica]

The Devil Wears Kilts or Rogue with a Brogue by Suzanne Enoch? They both have Scotsmen (brothers) accompanying their sisters in London. I don't know about the other details, though.