One or more house members keep secret (the secret may involve past or present events)... (d8)

1

A long-time scandalous romance.

2

The existence of a bastard child.

3

A murder in one of the house's keeps, castles, or palaces.

4

Religious zealotry.

5

The birth of a malformed freak.

6

Treason against the region's sovereign.

7

The senility or madness of family members.

8

Criminal sabotage of a rival house.