MSPs voted by 69 to 59 in favour of seeking permission for a referendum before the UK leaves the EU.
The Lords is debating ways to help the United Kingdom’s position in medical research
The Public Accounts Committee discusses Natural Resources Wales' annual accounts. Plenary begins with Questions to the First Minister. There is also a Stage 3 Debate on the land transaction tax bill.
MLAs hold a special meeting of the Northern Ireland Assembly to mark the death of Martin McGuinness.
Parliamentarians will get on with the day-to-day business of democracy, while remembering those affected by terrorist attack on Westminster.