Possible Clues:

• ____ and Pembroke are the only two Oxford University colleges on squares of the same name
• Window; Oxford college
• College that is blocking alternative source of lectures
• Four, five, all regularly seen in college
• Upper-story window
• Large bay window projecting from a wall
• Bay with window
• Oxford college or one the Spanish added
• A projecting cantilevered window
• Marjorie loves a little window