Mr Black, who has called Mr Trump a friend, published a book previous year praising him, titled "Donald J Trump: A President Like No Other".
Not only that Black would receive a full pardon from criminal charges, as he did on Wednesday, but that the pardon would be communicated by a White House led by a former business associate, real estate tycoon Donald Trump - a bit player in the saga of Black's fall from atop an worldwide media empire spanning three continents. Hollinger was the publisher of a number of papers throughout the world, including The Daily Telegraph, Chicago Sun-Times and The Jerusalem Post, as well as hundreds of smaller community newspapers, according to Deadline.
In 2007, Black was convicted of three counts of fraud and one of obstruction of justice in a Chicago court and sentenced to six and a half years in jail - more than twice the sentence handed to David Radler, his longtime partner who agreed to testify for the prosecution.
Black, who was born Canadian - though he holds British citizenship and is a British peer - was deported to Canada after being released in 2012.
It said Black had made "tremendous contributions to business", had written books on history and served as a tutor while in prison.
It goes on to describe how Nolan ended up advocating for criminal justice reform, specifically the "Prison Rape Elimination Act", the "Second Chance Act", the "Fair Sentencing Act", and the "FIRST Step Act".
He continues to write columns for the National Post.
In 2015, Black wrote a National Review essay titled "Trump Is the Good Guy".
Black describes his "ordeal with the US justice system" as "never anything but a confluence of unlucky events, the belligerence of several corporate governance charlatans, and grandstanding local and American judges", followed with intensity because he was a media owner.
Lord Black, 74, was convicted of fraud and obstruction...
Sanders said Black is the author of several notable biographies, including volumes on Presidents Franklin D. Roosevelt and Richard Nixon, but she did not mention his book about Trump.
A statement from the White House said the case "attracted broad support from many high-profile individuals who have vigorously vouched for his exceptional character".
Trump has used his power of pardon before this and critics say he does it for people who back him or his ideas.
Trump has also pardoned Patrick Nolan, a former Republican leader of the California State Assembly.