Former U.S. Sen. Richard Shelby donated $4 million from his campaign account to Georgetown University, where his wife was the first tenured female professor at the Ivy prestigious university’s business school, according to a Federal Election Commission filing he submitted Monday.

Shelby made the $4 million charitable donation through his campaign account on Nov. 3, the filing showed.

Shelby’s wife, Annette Shelby, taught at Georgetown University’s McDonough School of Business, becoming the first female granted tenure at the institution. In 1991, the business school named her professor emerita.

Annette Shelby also directed Georgetown’s undergraduate and graduate programs at Oxford University.

Even after the substantial donation, Richard Shelby’s campaign account had a nearly $5.5 million balance as of Dec. 31, according to the filing.

The former longtime senator, who retired in January, also maintains a leadership PAC — used to support candidates for federal office — called Defend America.

The leadership PAC, which started 2022 with a balance of nearly $7.4 million, was left with about $664,000 as of Dec. 31.

Defend America donated $55,000 in the last three months of 2022 to several members of Alabama’s congressional delegation.