Matsudaira family business

Any ideas on the following would be welcome:

approx 1544
Matsudaira Hirotada married the daughter of Toda no danjo
Shohitsu Yasumitsu when the future Ieyasu (Tokachiyo)
was about 2 years old.

1545
Very shortly after (as far as I can make out) Toda Yasumitsu
defected to the Oda.

1546
Shortly after that, Toda Yasumitsu kidnapped the 4-year-old
Takechiyo on his way to Sumpu.

My questions:

What was the name of Toda's daughter (Hirotada's wife)?

What happened to her? (Hirotada sent his first wife (Odai) back
to her brother after Mizuno Nobumoto broke with the
Imagawa - did he do the same with his second wife?)

Sadler, in his biog. of Ieyasu, mentions Toda Yasumitsu and his
brother Goro (of Imarashi Castle) - other sources mention
Yasumitsu and his son, Masanao, but no mention of a brother -
are both true?

Tawara and Imarashi castles were overthrown after Toda's
defection. Presumably they survived to live the bandit life
(or at least at large) to kidnap Takechiyo a year or so later.

* * * * *

I am currently writing a peice of historical fiction (loosely)
based around these events - any answers or ideas would be
welcome.

No, I don't read Japanese, so yes, I am working under somewhat
of a disadvantage (to put it lightly), but hey - it didn't hurt
James Clavell none!

I also have the first chapter ready. If anyone's interested let
me know, and I'll figure out somewhere to put it!

Thomas