Stephen Ross is giving the University of Michigan $200 million making it the largest single gift in the history in the university and Ross the largest donor.

The money will be split between the university’s business school — already named for Ross — and the athletic department.

It will be announced this morning in a press conference to be attended by U-M President Mary Sue Coleman business school dean Alison Davis-Blake and athletic director Dave Brandon. Faculty and staff at the business school will celebrate the gift with at a special gathering this morning.

“Stephen Ross’ vision has always been about the ability of facilities to transform the human experience” Coleman said in a press release. “He understands the power of well-conceived spaces and his generosity will benefit generations of Michigan students faculty and coaches.”