House Mandrake is a noble house from Westeros. It may be extinct.
A Dance with Dragons
Marq Mandrake, like the rest of the Golden Company, swears his allegiance to Prince Aegon Targaryen before they invade Westeros. Marq may not be a genuine Mandrake, as a man in the free companies can call himself whatever he chooses.
House Mandrake House at the end of the third century
The known Mandrakes during the timespan of the events described in A Song of Ice and Fire are: