Michael Caputo?
edit: Seems it's The Hapsburg Group. Those who read the Manafort & Gates indictments from February should be familiar with that name.
In an indictment updated Friday, special counsel Robert S. Mueller III accused Paul Manafort and Rick Gates of secretly retaining “a group of former senior European politicians to take positions favorable to Ukraine, including by lobbying in the United States.”
These former European leaders would claim to provide independent assessments of the Kiev government, but would in fact be “paid lobbyists” for Ukraine. In 2012 and 2013, Manafort used at least four offshore bank accounts to wire more than 2 million euros (roughly $2.5 million) to the group, the indictment states.
Though the group's members weren't named, they are collectively given an informal nickname: the “Hapsburg group,” an apparent reference (using an alternative spelling) to the Habsburg royal dynasty that ruled the Holy Roman Empire for centuries.
https://www.washingtonpost.com/news/worldviews/wp/2018/02/24/after-hapsburg-group-disclosure-in-mueller-indictment-former-european-politicians-come-under-scrutiny/?noredirect=on&utm_term=.90617fbaef42