German Chancellor Angela Merkel makes a speech at the European Parliament.
MPs are debating a Labour motion, on schools funding.
Plenary begins with Questions to the First Minister, and includes a debate on the Children's Commissioner for Wales' Annual Report 2017-18.
The Age of Criminal Responsibility (Scotland) Bill passed its first parliamentary hurdle.
The RHI Inquiry's public hearings draw to a close with more revelations about the botched scheme.
The Lords will debate the proposed suspension Lord Lester of Herne Hill on Thursday, but an unprecedented amendment means peers will be arguing about whether the process was fair.