Aunt Agatha and Lord Worplesdon

Aunt Agatha is married to Lord Worplesdon Joy in the Morning 1, 3, 4, 8, 23, 24, 28, 29; Jeeves and the Feudal Spirit 14; Aunts Aren't Gentlemen 9
Aunt Agatha marries Lord Worplesdon Joy in the Morning 1; Jeeves and the Feudal Spirit 1
Aunt Agatha orders Lord Worplesdon Joy in the Morning 14
Lord Worplesdon dreads Aunt Agatha Joy in the Morning 14, 23, 28, 29
Aunt Agatha breaks off the engagement with Lord Worplesdon Joy in the Morning 24
Aunt Agatha moulds Lord Worplesdon Jeeves and the Feudal Spirit 14

They deal with each other in Joy in the Morning 1, 3, 4, 8, 14, 23, 24, 28, 29; Jeeves and the Feudal Spirit 1, 14; Stiff Upper Lip, Jeeves 12; Aunts Aren't Gentlemen 9.

Every dealing, in order

Joy in the Morning

Chapter 1Aunt Agatha is married to Lord Worplesdon
Chapter 1Aunt Agatha married, as her second husband, Lord Worplesdon (earlier)
Chapter 3Lord Worplesdon is married to Aunt Agatha
Chapter 4Lord Worplesdon is married to Aunt Agatha
Chapter 8Lord Worplesdon is married to Aunt Agatha
Chapter 14Aunt Agatha repeatedly instructed to renew his burglary insurance Lord Worplesdon (earlier)
Chapter 14Lord Worplesdon is intensely afraid of Aunt Agatha
Chapter 23Aunt Agatha is wife of Lord Worplesdon
Chapter 23Lord Worplesdon fears the disapproval of Aunt Agatha
Chapter 24Lord Worplesdon is married to Aunt Agatha
Chapter 24Aunt Agatha broke off her engagement to Lord Worplesdon (earlier)
Chapter 24Lord Worplesdon is anxious to keep the night's doings from Aunt Agatha
Chapter 28Lord Worplesdon is husband of Aunt Agatha
Chapter 28Lord Worplesdon is crushed by news of Aunt Agatha
Chapter 29Aunt Agatha is wife of Lord Worplesdon
Chapter 29Lord Worplesdon dreads Aunt Agatha

Jeeves and the Feudal Spirit

Chapter 1Lord Worplesdon married Aunt Agatha (earlier)
Chapter 14Aunt Agatha is married to and trying to mould Lord Worplesdon
Chapter 14Aunt Agatha made give up smoking Lord Worplesdon (earlier)

Stiff Upper Lip, Jeeves

Chapter 12Aunt Agatha once made a vegetarian of Lord Worplesdon (earlier)

Aunts Aren't Gentlemen

Chapter 9Aunt Agatha is married to Lord Worplesdon