SELECT "Death" FROM table_37216 WHERE "Birth" = '6 january 1655'
When did the person born on 6 january 1655 die?
CREATE TABLE table_37216 (
    "Name" text,
    "Birth" text,
    "Marriage" text,
    "Became Duchess" text,
    "Ceased to be Duchess" text,
    "Death" text,
    "Spouse" text
)