 In his will , written the day before he died , Baltimore <unk> his friends Wentworth and Cottington to act as guardians and supervisors to his first son Cecil , who inherited the title of Lord Baltimore and the imminent grant of Maryland . Baltimore 's two colonies in the New World continued under the <unk> of his family . Avalon , which remained a prime spot for the <unk> and export of fish , was <unk> by Sir David <unk> , with a new royal charter which Cecil Calvert vigorously challenged , and it was finally absorbed into Newfoundland in 1754 . Although Baltimore 's failed Avalon venture marked the end of an early era of attempts at proprietary colonisation , it laid the foundation upon which permanent settlements developed in that region of Newfoundland . 
