Like the tiltyard, it was a mess and had been used for keeping hens and pigs.
From the telegraph.co.uk
The first Horse Guards building was built on the site of the former tiltyard of Westminster Palace in 1664.
From the en.wikipedia.org
He suggested that the most important thing to do was to clear and renovate the tiltyard and the terraces above it.
From the telegraph.co.uk
The Spanish chestnuts above the tiltyard were planted in the 16th century and the Monterey pine may not last much longer.
From the telegraph.co.uk
From then on the reader, too, is alert for him, doffing his robe to dance, dominating the tiltyard, until in 1509 he throws the windows open and sweeps his father's miserly dreariness away.
From the economist.com
More examples
(formerly) an enclosed field for tilting contests
A tiltyard (or tilt yard or tilt-yard) was an enclosed courtyard for jousting (also known as "tilting"). Tiltyards were a common feature of late medieval castles and palaces. ...