And then there was two.

Albany legislators have whittled down an extension of control over the city’s public schools to just two years for Mayor Eric Adams under a new bill being introduced Tuesday.

The seemingly teachers union-friendly draft legislation adds new checks on the mayor’s power — including an expansion of the Panel for Educational Policy, the city’s pseudo-school board, to a whopping 23 voting members next school year.

Gov. Kathy Hochul had originally proposed a four-year extension of mayor control for Adams, with no changes to school governance structures.

The draft legislation comes alongside a bill to reduce class sizes throughout the city to under 25 students per class with exemptions. The Post previously reported such a bill could be tied into passing mayoral control legislation.

Under the proposal, five of the PEP appointees would still be made by borough presidents.

An additional five members, one from each borough, would be voted in by parent-led Community Education Council presidents to represent local families’ interests.

To keep the mayor’s supermajority, Adams would get 13 members on the panel — up from nine, the current makeup. Four of those members would need to be parents of public school students, including children with disabilities or learning English.

The current PEP has slots for 15 members, which have yet to be all filled during Adams’ tenure. The mayor made his final appointee earlier this month — just as a borough president appointee had to step back from her responsibilities on the panel.

Members will be appointed for one-year terms, and the new bill includes language that protects them from being removed from their post for voting against the mayor or borough president who appointed them.

In prior administrations, mayors had the authority — and at times, would follow through — to axe appointees who voted against their policies.

The changes also add the city comptroller, currently Brad Lander, as a non-voting member of the education panel.

Also under the bill, the chancellor is charged with establishing a process for the parent-led council presidents to elect members of the PEP, and to remove members or fill vacancies. Their terms will start over the summer for one-year terms.

Appointed and elected members will newly be required to complete trainings on handling city funds, and the power and responsibilities of the board.