have a weak constitution

However, as he was of weak constitution, his retired father continued to play an active role in his administration.

He had a weak constitution and was likely seven years old at the time of his father's death in 1246, being born ca. 1238/39.

- in truth she has enough to think of to adorn her body and nurse a weak constitution.

Like other elves, they are more dexterous than humans, but have a weaker constitution.

Michael Agnethler had been of a weak physical constitution, with difficulty sleeping.

Mind was mostly left to himself because of his weak constitution.

He has a weak constitution, however, so spends a lot of time in bed.

From a very young age Lang had always been described as having a "weak constitution".

He has a weak constitution, which caused him to miss most of his first year.

His weak constitution immediately started to trouble him.