A baroness
No, the lady of a castle would usually be the baron's wife.
No. Lady gaga is Stefani Joanne Angelina Germanotta.
The Bloody Baron killed Helena Ravenclaw (the Grey Lady)
The Bloody Baron
nearly headless nick the bloody baron the grey lady
A duke is addressed as "Your Grace," while their spouse is referred to as "Duchess." An earl is addressed as "Lord" and his spouse as "Lady." A viscount is addressed as "Lord" with "Lady" for his wife, and a baron is also "Lord," with their spouse similarly called "Lady." A marquess is addressed as "Lord" and his wife as "Marchioness."
Baron is a title.If you mean the style of address, it would be Lord or Lady Whatever.(This is the UK style of address, equivalent ranks in other countries may have a different style.)
Flora's father was the Baron Augustus Reinhold, and her mother was Lady Violet.
A baron's wife; also, a lady who holds the baronial title in her own right; as, the Baroness Burdett-Coutts.
A lord is a title of nobility below a prince or duke, but above a baron or knight. A lady is typically the wife of a lord or a woman with a title of nobility. Both the lord and lady would be considered part of the English aristocracy.
Slytherin House: The Bloody Baron Gryffindor: Nearly Headless Nick Hufflepuff: The Fat Friar Ravenclaw: The Grey Lady
The masculine of baroness is baron.