Mullioned

A dull light shone through heavy mullioned windows.

As Sir Henry and I sat at breakfast the sunlight flooded in through the high mullioned windows, throwing watery patches of colour from the coats-of-arms which covered them.

The front elevation is pierced by mullioned windows of varied dimensions after the style of Burghley House.

[…] as London light […] grows between the faces of the mullioned windows […]