Mark and Andrew Madoff agreed with Mr. Picard not to transfer or sell certain assets.

WSJ: Picard Suit Dogged Madoff

One filed on December 8 named Mark Madoff -- as well as his brother Andrew Madoff and uncle Peter Madoff -- as one of several defendants in a civil lawsuit.

CNN: Mark Madoff death ruled a suicide, officials say

Following a critical article about the Madoff firm in 2001 by Barron's, which raised questions about whether the secretive investment operation was legitimately generating returns, Mark Madoff, with Andrew watching nearby, addressed dozens of Madoff traders in the firm's offices, strongly arguing that the article was incorrect, and that Madoff's investment operation was legitimate, according to people who were there.

WSJ: Mark Madoff and the Fraud's Burden

Mark and Andrew were employees of Bernard L. Madoff Investment Securities LLC, though they worked in the trading section, allegedly separate from the fraudulent investment management and advisory divisions.

FORBES: Mark Madoff Suicide: Bullied To Death?

This week, Mr. Picard sued children of Andrew and Mark, alleging that Ruth and Bernard Madoff transferred funds to them.

WSJ: Picard Suit Dogged Madoff

Also last week, Mr. Picard sued children of Andrew and Mark, alleging that Ruth and Bernard Madoff transferred funds to them.

WSJ: Trustee Will Move Ahead With Suits Filed Against Mark Madoff